Fixed ~240 possible crashes

autogen/lua_definitions/constants.lua

@@ -11543,13 +11543,13 @@ MAX_LOCAL_VERSION_LENGTH = 36
 MAX_VERSION_LENGTH = 32
 
 --- @type integer
-MINOR_VERSION_NUMBER = 1
+MINOR_VERSION_NUMBER = 0
 
 --- @type integer
 PATCH_VERSION_NUMBER = 0
 
 --- @type integer
-VERSION_NUMBER = 34
+VERSION_NUMBER = 35
 
 --- @type string
 VERSION_REGION = "JP"

autogen/lua_definitions/functions.lua

@@ -7187,6 +7187,12 @@ function get_object_list_from_behavior(behavior)
     -- ...
 end
 
+--- @param trajectory Pointer_Trajectory
+--- @return integer
+function get_trajectory_length(trajectory)
+    -- ...
+end
+
 --- @param value number
 --- @param center number
 --- @param zeroThreshold number
@@ -9000,8 +9006,9 @@ function cur_obj_play_sound_2(soundMagic)
 end
 
 --- @param soundStates SoundState
+--- @param maxSoundStates integer
 --- @return nil
-function exec_anim_sound_state(soundStates)
+function exec_anim_sound_state(soundStates, maxSoundStates)
     -- ...
 end
 
@@ -9076,5 +9083,5 @@ end
 --- @class Pointer_number
 --- @class Pointer_Vec4s
 --- @class Pointer_Mtx
---- @class Pointer_Collision
 --- @class Pointer_Trajectory
+--- @class Pointer_Collision

data/dynos_level.cpp

@@ -908,6 +908,7 @@ s16 *DynOS_Level_GetWarp(s32 aLevel, s32 aArea, u8 aWarpId) {
     }
 
     DynOS_Level_Init();
+    if (aLevel < LEVEL_COUNT) {
         for (const auto &_Warp : sDynosLevelWarps[aLevel]) {
             if (_Warp.mArea == aArea) {
                 if (_Warp.mId == aWarpId) {
@@ -915,6 +916,7 @@ s16 *DynOS_Level_GetWarp(s32 aLevel, s32 aArea, u8 aWarpId) {
                 }
             }
         }
+    }
     return NULL;
 }
 

docs/lua/functions-4.md

@@ -4650,6 +4650,26 @@
 
 <br />
 
+## [get_trajectory_length](#get_trajectory_length)
+
+### Lua Example
+`local integerValue = get_trajectory_length(trajectory)`
+
+### Parameters
+| Field | Type |
+| ----- | ---- |
+| trajectory | `Pointer` <`Trajectory`> |
+
+### Returns
+- `integer`
+
+### C Prototype
+`s32 get_trajectory_length(Trajectory* trajectory);`
+
+[:arrow_up_small:](#)
+
+<br />
+
 ## [increment_velocity_toward_range](#increment_velocity_toward_range)
 
 ### Lua Example

docs/lua/functions-5.md

@@ -2569,18 +2569,19 @@
 ## [exec_anim_sound_state](#exec_anim_sound_state)
 
 ### Lua Example
-`exec_anim_sound_state(soundStates)`
+`exec_anim_sound_state(soundStates, maxSoundStates)`
 
 ### Parameters
 | Field | Type |
 | ----- | ---- |
 | soundStates | [SoundState](structs.md#SoundState) |
+| maxSoundStates | `integer` |
 
 ### Returns
 - None
 
 ### C Prototype
-`void exec_anim_sound_state(struct SoundState *soundStates);`
+`void exec_anim_sound_state(struct SoundState *soundStates, u16 maxSoundStates);`
 
 [:arrow_up_small:](#)
 

docs/lua/functions.md

@@ -1348,6 +1348,7 @@
    - [find_unimportant_object](functions-4.md#find_unimportant_object)
    - [geo_offset_klepto_debug](functions-4.md#geo_offset_klepto_debug)
    - [get_object_list_from_behavior](functions-4.md#get_object_list_from_behavior)
+   - [get_trajectory_length](functions-4.md#get_trajectory_length)
    - [increment_velocity_toward_range](functions-4.md#increment_velocity_toward_range)
    - [is_item_in_array](functions-4.md#is_item_in_array)
    - [is_mario_moving_fast_or_in_air](functions-4.md#is_mario_moving_fast_or_in_air)

src/engine/behavior_script.c

@@ -130,6 +130,7 @@ void obj_update_gfx_pos_and_angle(struct Object *obj) {
 static void cur_obj_bhv_stack_push(uintptr_t bhvAddr) {
     gCurrentObject->bhvStack[gCurrentObject->bhvStackIndex] = bhvAddr;
     gCurrentObject->bhvStackIndex++;
+    if (gCurrentObject->bhvStackIndex >= 8) { gCurrentObject->bhvStackIndex = 8 - 1; }
 }
 
 // Retrieve the last behavior command address from the object's behavior stack.
@@ -137,6 +138,7 @@ static uintptr_t cur_obj_bhv_stack_pop(void) {
     uintptr_t bhvAddr;
 
     gCurrentObject->bhvStackIndex--;
+    if (gCurrentObject->bhvStackIndex >= 8) { gCurrentObject->bhvStackIndex = 0; }
     bhvAddr = gCurrentObject->bhvStack[gCurrentObject->bhvStackIndex];
 
     return bhvAddr;
@@ -858,7 +860,9 @@ static s32 bhv_cmd_parent_bit_clear(void) {
     s32 value = BHV_CMD_GET_U32(1);
 
     value = value ^ 0xFFFFFFFF;
+    if (gCurrentObject->parentObj) {
         obj_and_int(gCurrentObject->parentObj, field, value);
+    }
 
     gCurBhvCommand += 2;
     return BHV_PROC_CONTINUE;
@@ -1337,6 +1341,7 @@ cur_obj_update_begin:;
 
     if (!skipBehavior) {
         do {
+            if (!gCurBhvCommand) { break; }
             bhvCmdProc = BehaviorCmdTable[*gCurBhvCommand >> 24];
             bhvProcResult = bhvCmdProc();
         } while (bhvProcResult == BHV_PROC_CONTINUE);

src/engine/graph_node.c

@@ -488,7 +488,7 @@ struct GraphNodeBackground *init_graph_node_background(struct AllocOnlyPool *poo
     if (graphNode != NULL) {
         init_scene_graph_node_links(&graphNode->fnNode.node, GRAPH_NODE_TYPE_BACKGROUND);
 
-        if (background > BACKGROUND_CUSTOM) {
+        if (backgroundFunc && background > BACKGROUND_CUSTOM) {
             LOG_ERROR("invalid background id");
             background = BACKGROUND_OCEAN_SKY;
         }

src/engine/level_script.c

@@ -66,6 +66,7 @@ static s32 sRegister;
 static struct LevelCommand *sCurrentCmd;
 
 static u8 sLevelOwnedGraphNodes[MAX_LOADED_GRAPH_NODES] = { 0 };
+static u8 sFinishedLoadingPerm = false;
 
 static s32 eval_script_area(s32 arg) {
     return (sWarpDest.areaIdx == arg);
@@ -389,6 +390,7 @@ static void level_cmd_alloc_level_pool(void) {
     // reset level graph node ownership
     for (s32 i = 0; i < MAX_LOADED_GRAPH_NODES; i++) {
         if (sLevelOwnedGraphNodes[i]) {
+            gLoadedGraphNodes[i] = NULL;
             sLevelOwnedGraphNodes[i] = false;
         }
     }
@@ -455,7 +457,7 @@ static void level_cmd_load_model_from_dl(void) {
 
     if (val1 < MAX_LOADED_GRAPH_NODES) {
         gLoadedGraphNodes[val1] = (struct GraphNode *) init_graph_node_display_list(sLevelPool, 0, val2, val3);
-        sLevelOwnedGraphNodes[val1] = true;
+        if (sFinishedLoadingPerm) { sLevelOwnedGraphNodes[val1] = true; }
         smlua_model_util_remember(val1, val2, val3, 1);
     }
 
@@ -468,8 +470,11 @@ static void level_cmd_load_model_from_geo(void) {
 
     if (arg0 < MAX_LOADED_GRAPH_NODES) {
         gLoadedGraphNodes[arg0] = process_geo_layout(sLevelPool, arg1);
-        sLevelOwnedGraphNodes[arg0] = true;
+        if (sFinishedLoadingPerm) { sLevelOwnedGraphNodes[arg0] = true; }
         smlua_model_util_remember(arg0, LAYER_OPAQUE, arg1, 0);
+        if (arg0 == MODEL_ERROR_MODEL) {
+            sFinishedLoadingPerm = true;
+        }
     }
 
     sCurrentCmd = CMD_NEXT;
@@ -491,7 +496,7 @@ static void level_cmd_23(void) {
         // GraphNodeScale has a GraphNode at the top. This
         // is being stored to the array, so cast the pointer.
         gLoadedGraphNodes[model] = (struct GraphNode *) init_graph_node_scale(sLevelPool, 0, arg0H, arg1, arg2.f);
-        sLevelOwnedGraphNodes[model] = true;
+        if (sFinishedLoadingPerm) { sLevelOwnedGraphNodes[model] = true; }
         smlua_model_util_remember(model, arg0H, arg1, 1);
     }
 

src/game/behavior_actions.h

@@ -1,6 +1,9 @@
 #ifndef BEHAVIOR_ACTIONS_H
 #define BEHAVIOR_ACTIONS_H
 
+#define BHV_ARR_CHECK(_arr, _idx, _arritem) (((size_t)_idx) < (sizeof(_arr) / sizeof(_arritem)))
+#define BHV_ARR(_arr, _idx, _arritem) (BHV_ARR_CHECK(_arr, _idx, _arritem) ? _arr[_idx] : 0)
+
 void spawn_mist_particles_variable(s32 count, s32 offsetY, f32 size);
 void bhv_spawn_star_no_level_exit(struct Object* object, u32 params, u8 networkSendEvent);
 void bhv_star_door_loop_2(void);

src/game/behaviors/beta_boo_key.inc.c

@@ -35,7 +35,9 @@ void bhv_alpha_boo_key_loop(void) {
         // Another theory is that the boo key was intended to be spawned by a
         // spawner that used object field 0x00 for something else. This
         // is elaborated on more in beta_boo_key_dropped_loop.
+        if (o->parentObj) {
             o->parentObj->oBooDeathStatus = BOO_DEATH_STATUS_DYING;
+        }
 
         // Delete the object and spawn sparkles
         obj_mark_for_deletion(o);
@@ -94,7 +96,7 @@ static void beta_boo_key_dropped_loop(void) {
             // One theory about this code is that there was a boo spawner, which
             // spawned "false" boos and one "true" boo with the key, and the player
             // was intended to find the one with the key to progress.
-            o->parentObj->oInteractStatus = INT_STATUS_HOOT_GRABBED_BY_MARIO;
+            if (o->parentObj) { o->parentObj->oInteractStatus = INT_STATUS_HOOT_GRABBED_BY_MARIO; }
 
             // Delete the object and spawn sparkles
             obj_mark_for_deletion(o);
@@ -120,7 +122,9 @@ static void beta_boo_key_drop(void) {
     // which stops this function from running again.
     if (o->oTimer == 0) {
         // Separate from the parent boo
+        if (parent) {
             o->parentObj = parent->parentObj;
+        }
 
         o->oAction = BETA_BOO_KEY_ACT_DROPPED;
 
@@ -154,7 +158,7 @@ static void beta_boo_key_inside_boo_loop(void) {
     o->oPosY += 40.0f;
 
     // If the boo is dying/dead, set the action to BETA_BOO_KEY_ACT_DROPPING.
-    if (parent->oBooDeathStatus != BOO_DEATH_STATUS_ALIVE) {
+    if (parent && parent->oBooDeathStatus != BOO_DEATH_STATUS_ALIVE) {
         o->oAction = BETA_BOO_KEY_ACT_DROPPING;
     }
 

src/game/behaviors/bird.inc.c

@@ -63,7 +63,7 @@ static void bird_act_fly(void) {
     // A spawned bird's parent is its spawner bird. A spawner bird's parent
     // is itself. In other words, when a group of birds has its spawner bird
     // fly past Y=8000, they will all despawn simultaneously. Otherwise, fly.
-    if (o->parentObj->oPosY > 8000.0f) {
+    if (!o->parentObj || o->parentObj->oPosY > 8000.0f) {
         obj_mark_for_deletion(o);
     } else {
         // If the bird is a spawner bird, fly towards its home; otherwise,

src/game/behaviors/blue_coin.inc.c

@@ -28,7 +28,7 @@ void bhv_hidden_blue_coin_loop(void) {
             // Wait until the blue coin switch starts ticking to activate.
             blueCoinSwitch = o->oHiddenBlueCoinSwitch;
 
-            if (blueCoinSwitch->oAction == BLUE_COIN_SWITCH_ACT_TICKING) {
+            if (blueCoinSwitch && blueCoinSwitch->oAction == BLUE_COIN_SWITCH_ACT_TICKING) {
                 o->oAction++; // Set to HIDDEN_BLUE_COIN_ACT_ACTIVE
             }
 
@@ -107,8 +107,10 @@ void bhv_blue_coin_number_loop(void) {
  */
 void bhv_blue_coin_switch_init(void) {
     struct Object *blueCoinNumber = spawn_object(o, MODEL_NUMBER, bhvBlueCoinNumber);
+    if (blueCoinNumber) {
         blueCoinNumber->activeFlags |= ACTIVE_FLAG_INITIATED_TIME_STOP; // to make sure it's updated even during time stop
         blueCoinNumber->oHiddenBlueCoinSwitch = o;
+    }
     o->oHomeY = o->oPosY;
 }
 

src/game/behaviors/blue_fish.inc.c

@@ -85,7 +85,7 @@ void bhv_blue_fish_movement_loop(void) {
     cur_obj_move_using_fvel_and_gravity();
     
     // Deletes object if the parent has oAction set to BLUE_FISH_ACT_DUPLICATE.
-    if (o->parentObj->oAction == BLUE_FISH_ACT_DUPLICATE) {
+    if (!o->parentObj || o->parentObj->oAction == BLUE_FISH_ACT_DUPLICATE) {
         obj_mark_for_deletion(o);
     }
 }

src/game/behaviors/bowling_ball.inc.c

@@ -266,7 +266,7 @@ void bhv_bob_pit_bowling_ball_loop(void) {
     UNUSED s16 collisionFlags = object_step();
 
     find_floor_height_and_data(o->oPosX, o->oPosY, o->oPosZ, &sp1c);
-    if ((sp1c->normalX == 0) && (sp1c->normalZ == 0))
+    if (sp1c && (sp1c->normalX == 0) && (sp1c->normalZ == 0))
         o->oForwardVel = 28.0f;
 
     bowling_ball_set_hitbox();

src/game/behaviors/bowser.inc.c

@@ -48,6 +48,7 @@ s16 D_8032F520[][3] = { { 1, 10, 40 },   { 0, 0, 74 },    { -1, -10, 114 },  { 1
                         { -1, 80, 184 }, { 1, 160, 186 }, { -1, -160, 186 }, { 1, 0, 0 }, };
 
 void bhv_bowser_tail_anchor_init(void) {
+    if (!o->parentObj) { mark_obj_for_deletion(o); return; }
     sync_object_init_field(o->parentObj, &o->oAction);
     sync_object_init_field(o->parentObj, &o->oPrevAction);
     sync_object_init_field(o->parentObj, &o->oTimer);
@@ -59,6 +60,7 @@ void bhv_bowser_tail_anchor_init(void) {
 }
 
 void bhv_bowser_tail_anchor_loop(void) {
+    if (!o->parentObj) { return; }
     CUR_OBJ_CALL_ACTION_FUNCTION(sBowserTailAnchorActions);
     o->oParentRelativePosX = 90.0f;
     if (o->parentObj->oAction == 4)
@@ -71,6 +73,7 @@ void bhv_bowser_flame_spawn_loop(void) {
         sync_object_init(o, SYNC_DISTANCE_ONLY_EVENTS);
     }
     struct Object *bowser = o->parentObj;
+    if (!bowser) { return; }
     s32 sp30;
     f32 sp2C;
     f32 sp28;
@@ -79,8 +82,9 @@ void bhv_bowser_flame_spawn_loop(void) {
     s16 *sp1C = segmented_to_virtual(bowser_seg6_unkmoveshorts_060576FC);
     if (bowser->oSoundStateID == 6) {
         sp30 = bowser->header.gfx.animInfo.animFrame + 1.0f;
-        if (bowser->header.gfx.animInfo.curAnim->loopEnd == sp30)
+        if (bowser->header.gfx.animInfo.curAnim && bowser->header.gfx.animInfo.curAnim->loopEnd == sp30) {
             sp30 = 0;
+        }
         if (sp30 > 45 && sp30 < 85) {
             cur_obj_play_sound_1(SOUND_AIR_BOWSER_SPIT_FIRE);
             sp2C = sp1C[5 * sp30];
@@ -106,6 +110,7 @@ void bhv_bowser_flame_spawn_loop(void) {
 }
 
 void bhv_bowser_body_anchor_init(void) {
+    if (!o->parentObj) { mark_obj_for_deletion(o); return; }
     sync_object_init_field(o->parentObj, &o->oInteractType);
     sync_object_init_field(o->parentObj, &o->oInteractStatus);
     sync_object_init_field(o->parentObj, &o->oIntangibleTimer);
@@ -113,6 +118,7 @@ void bhv_bowser_body_anchor_init(void) {
 }
 
 void bhv_bowser_body_anchor_loop(void) {
+    if (!o->parentObj) { return; }
     obj_copy_pos_and_angle(o, o->parentObj);
     if (o->parentObj->oAction == 4) {
 #ifndef VERSION_JP
@@ -1213,7 +1219,7 @@ void bowser_free_update(void) {
         o->platform = floor->object;
     else
         o->platform = NULL;
-    exec_anim_sound_state(D_8032F5B8);
+    exec_anim_sound_state(D_8032F5B8, sizeof(D_8032F5B8) / sizeof(struct SoundState));
 }
 
 void bowser_held_update(void) {
@@ -1262,9 +1268,11 @@ void bowser_thrown_dropped_update(void) {
     o->oForwardVel = coss(o->oBowserHeldAnglePitch) * sp1C;
     o->oVelY = -sins(o->oBowserHeldAnglePitch) * sp1C;
     cur_obj_become_intangible();
+    if (o->prevObj) {
         o->prevObj->oAction = 1; // not sure what prevObj is
         o->prevObj->oTimer = 0;
         o->prevObj->oSubAction = 0;
+    }
     o->oTimer = 0;
     o->oSubAction = 0;
 
@@ -1549,7 +1557,9 @@ Gfx *geo_bits_bowser_coloring(s32 run, struct GraphNode *node, UNUSED s32 a2) {
 
 void falling_bowser_plat_act_0(void) {
     o->oPlatformUnkF8 = cur_obj_nearest_object_with_behavior(bhvBowser);
+    if (BHV_ARR_CHECK(D_8032F698, o->oBehParams2ndByte, struct Struct8032F698)) {
         obj_set_collision_data(o, D_8032F698[o->oBehParams2ndByte].unk0);
+    }
     if (o->oPlatformUnkF8 != 0)
         o->oAction = 1;
 }
@@ -1558,13 +1568,13 @@ void falling_bowser_plat_act_1(void) {
     u8 doSend = FALSE;
     UNUSED s32 unused;
     struct Object *sp0 = o->oPlatformUnkF8;
-    if (sp0->platform == o) {
+    if (sp0 && sp0->platform == o) {
         if (sp0->oAction == 13 && sp0->oBowserUnkF4 & 0x10000) {
             o->oAction = 2;
             doSend = TRUE;
         }
     }
-    if (sp0->oHealth == 1 && (sp0->oAction == 3 || sp0->oHeldState != HELD_FREE))
+    if (sp0 && sp0->oHealth == 1 && (sp0->oAction == 3 || sp0->oHeldState != HELD_FREE))
         o->oSubAction = 1;
     if (o->oSubAction == 0)
         o->oPlatformUnkFC = 0;
@@ -1594,7 +1604,7 @@ void falling_bowser_plat_act_2(void) {
         o->oGravity = 0.0f;
     } else
         o->oGravity = -4.0f;
-    if ((o->oTimer & 1) == 0 && o->oTimer < 14) {
+    if ((o->oTimer & 1) == 0 && o->oTimer < 14 && BHV_ARR_CHECK(D_8032F698, o->oBehParams2ndByte, struct Struct8032F698)) {
         sp22 = D_8032F698[o->oBehParams2ndByte].unk3 + (gDebugInfo[4][1] << 8);
         sp1C = -(o->oTimer / 2) * 290 + 1740;
         vec3f_copy_2(sp24, &o->oPosX);
@@ -1779,10 +1789,16 @@ void bhv_flame_floating_landing_loop(void) {
     cur_obj_update_floor_and_walls();
     cur_obj_move_standard(0x4e);
     bowser_flame_move();
-    if (bowser_flame_should_despawn(900))
+    if (bowser_flame_should_despawn(900)) {
         obj_mark_for_deletion(o);
-    if (o->oVelY < D_8032F748[o->oBehParams2ndByte])
+    }
+
+    if (BHV_ARR_CHECK(D_8032F748, o->oBehParams2ndByte, f32)) {
+        if (o->oVelY < D_8032F748[o->oBehParams2ndByte]) {
             o->oVelY = D_8032F748[o->oBehParams2ndByte];
+        }
+    }
+
     if (o->oMoveFlags & OBJ_MOVE_LANDED) {
         if (o->oBehParams2ndByte == 0)
             spawn_object(o, MODEL_RED_FLAME, bhvFlameLargeBurningOut);

src/game/behaviors/bub.inc.c

@@ -8,6 +8,7 @@
 void bub_spawner_act_0(void) {
     s32 i;
     s32 sp18 = o->oBirdChirpChirpUnkF4;
+    if (sp18 > 20) { sp18 = 20; }
     for (i = 0; i < sp18; i++)
         spawn_object(o, MODEL_BUB, bhvBub);
     o->oAction = 1;
@@ -138,6 +139,6 @@ void bhv_bub_loop(void) {
     cur_obj_update_floor_and_walls();
     CUR_OBJ_CALL_ACTION_FUNCTION(sCheepCheepActions);
     cur_obj_move_using_fvel_and_gravity();
-    if (o->parentObj->oAction == 2)
+    if (!o->parentObj || o->parentObj->oAction == 2)
         obj_mark_for_deletion(o);
 }

src/game/behaviors/cannon.inc.c

@@ -53,9 +53,9 @@ void opened_cannon_act_4(void) {
         o->oPosZ += (f32)((o->oTimer / 2 & 1) - 0.5) * 4;
         o->oAction = 6;
     }
-    if (o->oCannonPlayerIndex != 0) {
+    if (o->oCannonPlayerIndex != 0 && o->oCannonPlayerIndex < MAX_PLAYERS) {
         struct MarioState* controlledBy = &gMarioStates[o->oCannonPlayerIndex];
-        if (controlledBy->marioObj != NULL) {
+        if (controlledBy && controlledBy->marioObj != NULL) {
             controlledBy->marioObj->oMarioCannonObjectYaw = o->oMoveAngleYaw;
             controlledBy->marioObj->oMarioCannonInputYaw = 0;
         }
@@ -75,9 +75,9 @@ void opened_cannon_act_6(void) {
                 o->oMoveAngleYaw = sins(o->oCannonUnkF4) * 0x4000 + ((s16)(o->oBehParams2ndByte << 8));
                 o->oCannonUnkF4 += 0x400;
             } else if (o->oTimer < 26) {
-            } else {
+            } else if (o->oCannonPlayerIndex < MAX_PLAYERS) {
                 struct MarioState* controlledBy = &gMarioStates[o->oCannonPlayerIndex];
-                if (controlledBy->marioObj != NULL) {
+                if (controlledBy && controlledBy->marioObj != NULL) {
                     controlledBy->marioObj->oMarioCannonObjectYaw = o->oMoveAngleYaw;
                     controlledBy->marioObj->oMarioCannonInputYaw = 0;
                 }
@@ -110,7 +110,7 @@ void opened_cannon_act_1(void) {
     if (o->oCannonPlayerIndex == 0) {
         cur_obj_become_intangible();
         cur_obj_disable_rendering();
-    } else {
+    } else if (o->oCannonPlayerIndex < MAX_PLAYERS) {
         struct MarioState* controlledBy = &gMarioStates[o->oCannonPlayerIndex];
         o->oMoveAnglePitch = 14563 + controlledBy->faceAngle[0] * -0.5f;
         if (controlledBy->marioObj != NULL) {
@@ -245,7 +245,7 @@ void bhv_cannon_base_loop(void) {
 
 void bhv_cannon_barrel_loop(void) {
     struct Object *parent = o->parentObj;
-    if (parent->header.gfx.node.flags & GRAPH_RENDER_ACTIVE) {
+    if (parent && parent->header.gfx.node.flags & GRAPH_RENDER_ACTIVE) {
         cur_obj_enable_rendering();
         obj_copy_pos(o, o->parentObj);
         o->oMoveAngleYaw = o->parentObj->oMoveAngleYaw;

src/game/behaviors/capswitch.inc.c

@@ -8,7 +8,7 @@ void cap_switch_act_0(void) {
     o->oPosY += 71.0f;
     spawn_object_relative_with_scale(0, 0, -71, 0, 0.5f, o, MODEL_CAP_SWITCH_BASE, bhvCapSwitchBase);
     if (gCurrLevelNum != LEVEL_UNKNOWN_32) {
-        if (save_file_get_flags() & D_8032F0C0[o->oBehParams2ndByte]) {
+        if (save_file_get_flags() & BHV_ARR(D_8032F0C0, o->oBehParams2ndByte, s32)) {
             o->oAction = 3;
             o->header.gfx.scale[1] = 0.1f;
         } else
@@ -19,7 +19,7 @@ void cap_switch_act_0(void) {
 
 void cap_switch_act_1(void) {
     if (capSwitchForcePress || cur_obj_is_mario_on_platform()) {
-        save_file_set_flags(D_8032F0C0[o->oBehParams2ndByte]);
+        save_file_set_flags(BHV_ARR(D_8032F0C0, o->oBehParams2ndByte, s32));
         o->oAction = 2;
         cur_obj_play_sound_2(SOUND_GENERAL_ACTIVATE_CAP_SWITCH);
         if (!capSwitchForcePress) {

src/game/behaviors/castle_floor_trap.inc.c

@@ -6,10 +6,13 @@ void bhv_floor_trap_in_castle_loop(void) {
         if (!is_player_active(&gMarioStates[i])) { continue; }
         onPlatform = onPlatform || (gMarioStates[i].marioObj->platform == o);
     }
-    if (onPlatform)
+    if (o->parentObj) {
+        if (onPlatform) {
             o->parentObj->oInteractStatus |= INT_STATUS_TRAP_TURN;
+        }
         o->oFaceAngleRoll = o->parentObj->oFaceAngleRoll;
     }
+}
 
 void bhv_castle_floor_trap_init(void) {
     struct Object *sp2C;

src/game/behaviors/celebration_star.inc.c

@@ -1,10 +1,12 @@
 // celebration_star.c.inc
 
 void bhv_celebration_star_init(void) {
+    if (o->parentObj) {
         o->oHomeX = o->parentObj->header.gfx.pos[0];
         o->oPosY = o->parentObj->header.gfx.pos[1] + 30.0f;
         o->oHomeZ = o->parentObj->header.gfx.pos[2];
         o->oMoveAngleYaw = o->parentObj->header.gfx.angle[1] + 0x8000;
+    }
     o->oCelebStarDiameterOfRotation = 100;
 #if BUGFIX_STAR_BOWSER_KEY
     if (gCurrLevelNum == LEVEL_BOWSER_1 || gCurrLevelNum == LEVEL_BOWSER_2) {
@@ -57,7 +59,7 @@ void celeb_star_act_face_camera(void) {
         cur_obj_scale((f32) o->oTimer / 10.0);
 #endif
         o->oFaceAngleYaw += 0x1000;
-    } else {
+    } else if (o->parentObj) {
         o->oFaceAngleYaw = o->parentObj->header.gfx.angle[1];
     }
 

src/game/behaviors/chain_chomp.inc.c

@@ -38,14 +38,18 @@ void bhv_chain_chomp_chain_part_update(void) {
         obj_mark_for_deletion(o);
         network_send_object(o);
     } else if (o->oBehParams2ndByte != CHAIN_CHOMP_CHAIN_PART_BP_PIVOT) {
-        struct ChainSegment *segment = &o->parentObj->oChainChompSegments[o->oBehParams2ndByte];
+        struct ChainSegment *segment = (o->oBehParams2ndByte <= 4 && o->parentObj)
+            ? &o->parentObj->oChainChompSegments[o->oBehParams2ndByte]
+            : NULL;
 
         // Set position relative to the pivot
-        if (segment) {
+        if (segment && o->parentObj && o->parentObj->parentObj) {
+            if (o->parentObj->oChainChompSegments) {
                 o->oPosX = o->parentObj->parentObj->oPosX + segment->posX;
                 o->oPosY = o->parentObj->parentObj->oPosY + segment->posY;
                 o->oPosZ = o->parentObj->parentObj->oPosZ + segment->posZ;
             }
+        }
     } else if (o->parentObj->oChainChompReleaseStatus != CHAIN_CHOMP_NOT_RELEASED) {
         cur_obj_update_floor_and_walls();
         cur_obj_move_standard(78);
@@ -379,6 +383,10 @@ static void chain_chomp_act_move(void) {
         chain_chomp_act_uninitialized();
     }
 
+    if (!o->parentObj) {
+        return;
+    }
+
     // Segment 0 connects the pivot to the chain chomp itself
     o->oChainChompSegments[0].posX = o->oPosX - o->parentObj->oPosX;
     o->oChainChompSegments[0].posY = o->oPosY - o->parentObj->oPosY;
@@ -447,9 +455,11 @@ static void chain_chomp_act_unload_chain(void) {
     o->oAction = CHAIN_CHOMP_ACT_UNINITIALIZED;
 
     if (o->oChainChompReleaseStatus != CHAIN_CHOMP_NOT_RELEASED) {
+        if (o->oChainChompSegments) {
             for (u8 i = 0; i < 5; i++) {
                 obj_mark_for_deletion((struct Object*)&o->oChainChompSegments[i]);
             }
+        }
         obj_mark_for_deletion(o);
         obj_mark_for_deletion(o->parentObj);
     }

src/game/behaviors/checkerboard_platform.inc.c

@@ -57,7 +57,7 @@ static void bhv_checkerboard_platform_run_once(void) {
 }
 
 void bhv_checkerboard_platform_init(void) {
-    o->oCheckerBoardPlatformUnkFC = o->parentObj->oBehParams2ndByte;
+    o->oCheckerBoardPlatformUnkFC = o->parentObj ? o->parentObj->oBehParams2ndByte : 0;
     o->areaTimerType = AREA_TIMER_TYPE_LOOP;
     o->areaTimer = 0;
     o->areaTimerDuration = 132 + o->oCheckerBoardPlatformUnkFC * 2;

src/game/behaviors/cloud.inc.c

@@ -115,7 +115,7 @@ static void cloud_act_main(void) {
 
     localOffsetPhase = 0x800 * gGlobalTimer;
 
-    if (o->parentObj != o) {
+    if (o->parentObj && o->parentObj != o) {
         // Despawn if the parent lakitu does
         if (o->parentObj->activeFlags == ACTIVE_FLAG_DEACTIVATED) {
             o->oAction = CLOUD_ACT_UNLOAD;
@@ -180,7 +180,7 @@ void bhv_cloud_update(void) {
  * Update function for bhvCloudPart. Follow the parent cloud with some oscillation.
  */
 void bhv_cloud_part_update(void) {
-    if (o->parentObj->oAction == CLOUD_ACT_UNLOAD) {
+    if (!o->parentObj || o->parentObj->oAction == CLOUD_ACT_UNLOAD) {
         obj_mark_for_deletion(o);
     } else {
         f32 size = 2.0f / 3.0f * o->parentObj->header.gfx.scale[0];
@@ -206,8 +206,7 @@ void bhv_cloud_part_update(void) {
 
         o->oPosX = o->parentObj->oCloudCenterX + cloudRadius * sins(angleFromCenter) + localOffset;
 
-        o->oPosY =
+        o->oPosY = o->parentObj->oCloudCenterY + localOffset + size * BHV_ARR(sCloudPartHeights, o->oBehParams2ndByte, s8);
-            o->parentObj->oCloudCenterY + localOffset + size * sCloudPartHeights[o->oBehParams2ndByte];
 
         o->oPosZ = o->parentObj->oPosZ + cloudRadius * coss(angleFromCenter) + localOffset;
 

src/game/behaviors/coffin.inc.c

@@ -156,7 +156,7 @@ void coffin_act_stand_up(void) {
  */
 void bhv_coffin_loop(void) {
     // Gotta save those 6 object slots
-    if (o->parentObj->oAction == COFFIN_SPAWNER_ACT_COFFINS_UNLOADED) {
+    if (o->parentObj && o->parentObj->oAction == COFFIN_SPAWNER_ACT_COFFINS_UNLOADED) {
         obj_mark_for_deletion(o);
     } else {
         // Scale the coffin vertically? Must have thought it was too short?

src/game/behaviors/coin.inc.c

@@ -133,11 +133,12 @@ void bhv_coin_formation_spawn_loop(void) {
                 cur_obj_set_model(smlua_model_util_load(E_MODEL_YELLOW_COIN_NO_SHADOW));
         }
     } else {
-        if (bhv_coin_sparkles_init())
+        if (o->parentObj && bhv_coin_sparkles_init()) {
             o->parentObj->oCoinUnkF4 |= bit_shift_left(o->oBehParams2ndByte);
+        }
         o->oAnimState++;
     }
-    if (o->parentObj->oAction == 2)
+    if (!o->parentObj || o->parentObj->oAction == 2)
         obj_mark_for_deletion(o);
 }
 

src/game/behaviors/controllable_platform.inc.c

@@ -31,11 +31,11 @@ void bhv_controllable_platform_sub_loop(void) {
             if (gMarioStates[0].marioObj->platform == o) {
                 D_80331694 = o->oBehParams2ndByte;
 #ifdef VERSION_SH
-                o->parentObj->header.gfx.node.flags &= ~GRAPH_RENDER_INVISIBLE;
+                if (o->parentObj) { o->parentObj->header.gfx.node.flags &= ~GRAPH_RENDER_INVISIBLE; }
 #endif
                 o->oAction = 1;
                 cur_obj_play_sound_2(SOUND_GENERAL_MOVING_PLATFORM_SWITCH);
-                network_send_object(o->parentObj);
+                if (o->parentObj) { network_send_object(o->parentObj); }
             }
             break;
 
@@ -48,12 +48,14 @@ void bhv_controllable_platform_sub_loop(void) {
             break;
     }
 
+    if (o->parentObj) {
         o->oVelX = o->parentObj->oVelX;
         o->oVelZ = o->parentObj->oVelZ;
 
         if (o->parentObj->activeFlags == ACTIVE_FLAG_DEACTIVATED)
             o->activeFlags = ACTIVE_FLAG_DEACTIVATED;
     }
+}
 
 static void bhv_controllable_platform_on_received_post(UNUSED u8 localIndex) {
     oldD_80331694 = D_80331694;
@@ -279,6 +281,7 @@ void bhv_controllable_platform_loop(void) {
                 D_80331694 = 0;
                 o->oTimer = 0;
                 for (s32 i = 0; i < 4; i++) {
+                    if (!controllablePlatformSubs[i]) { continue; }
                     controllablePlatformSubs[i]->oParentRelativePosY = 51.0f;
                     controllablePlatformSubs[i]->oAction = 0;
                     controllablePlatformSubs[i]->oTimer = 0;

src/game/behaviors/elevator.inc.c

@@ -122,15 +122,15 @@ void elevator_act_3(void) // nearly identical to action 2
 }
 
 void bhv_elevator_init(void) {
-    s32 sp1C = D_8032F38C[o->oBehParams2ndByte * 3 + 2];
+    s32 sp1C = BHV_ARR(D_8032F38C, o->oBehParams2ndByte * 3 + 2, s16);
     if (sp1C == 0) {
-        o->oElevatorUnkF4 = D_8032F38C[o->oBehParams2ndByte * 3];
+        o->oElevatorUnkF4 = BHV_ARR(D_8032F38C, o->oBehParams2ndByte * 3, s16);
         o->oElevatorUnkF8 = o->oHomeY;
         o->oElevatorUnkFC = (o->oElevatorUnkF4 + o->oElevatorUnkF8) / 2;
         o->oElevatorUnk100 = cur_obj_has_behavior(bhvRrElevatorPlatform);
     } else {
-        o->oElevatorUnkF4 = D_8032F38C[o->oBehParams2ndByte * 3];
+        o->oElevatorUnkF4 = BHV_ARR(D_8032F38C, o->oBehParams2ndByte * 3, s16);
-        o->oElevatorUnkF8 = D_8032F38C[o->oBehParams2ndByte * 3 + 1];
+        o->oElevatorUnkF8 = BHV_ARR(D_8032F38C, o->oBehParams2ndByte * 3 + 1, s16);
         o->oElevatorUnkFC = (o->oElevatorUnkF4 + o->oElevatorUnkF8) / 2;
         o->oElevatorUnk100 = 2;
     }

src/game/behaviors/exclamation_box.inc.c

@@ -31,7 +31,7 @@ struct Struct802C0DF0 sExclamationBoxContents[] = { { 0, 0, 0, MODEL_MARIOS_WING
                                                     { 99, 0, 0, 0, NULL } };
 
 void bhv_rotating_exclamation_box_loop(void) {
-    if (o->parentObj->oAction != 1)
+    if (!o->parentObj || o->parentObj->oAction != 1)
         obj_mark_for_deletion(o);
 }
 
@@ -39,7 +39,7 @@ void exclamation_box_act_0(void) {
     o->oExclamationBoxForce = FALSE;
     if (o->oBehParams2ndByte < 3) {
         o->oAnimState = o->oBehParams2ndByte;
-        if ((save_file_get_flags() & D_8032F0C0[o->oBehParams2ndByte])
+        if ((save_file_get_flags() & BHV_ARR(D_8032F0C0, o->oBehParams2ndByte, s32))
             || ((o->oBehParams >> 24) & 0xFF) != 0)
             o->oAction = 2;
         else
@@ -56,7 +56,7 @@ void exclamation_box_act_1(void) {
         spawn_object(o, smlua_model_util_load(E_MODEL_EXCLAMATION_POINT), bhvRotatingExclamationMark);
         cur_obj_set_model(smlua_model_util_load(E_MODEL_EXCLAMATION_BOX_OUTLINE));
     }
-    if ((save_file_get_flags() & D_8032F0C0[o->oBehParams2ndByte])
+    if ((save_file_get_flags() & BHV_ARR(D_8032F0C0, o->oBehParams2ndByte, s32))
         || ((o->oBehParams >> 24) & 0xFF) != 0) {
         o->oAction = 2;
         cur_obj_set_model(smlua_model_util_load(E_MODEL_EXCLAMATION_BOX));

src/game/behaviors/eyerok.inc.c

@@ -208,6 +208,7 @@ static void eyerok_boss_act_die(void) {
 }
 
 void bhv_eyerok_boss_loop(void) {
+    if (!o->parentObj) { return; }
     if (o->oAction == EYEROK_BOSS_ACT_DEAD) {
         return;
     }
@@ -232,7 +233,7 @@ void bhv_eyerok_boss_loop(void) {
     }
 
     if (o->oAction != oldAction) {
-        if (sync_object_is_owned_locally(o->parentObj->oSyncID)) {
+        if (o->parentObj && sync_object_is_owned_locally(o->parentObj->oSyncID)) {
             eyerokBossImmediateUpdate = TRUE;
         } else {
             o->oAction = EYEROK_BOSS_ACT_PAUSE;
@@ -246,6 +247,7 @@ void bhv_eyerok_boss_loop(void) {
 }
 
 static s32 eyerok_hand_check_attacked(void) {
+    if (!o->parentObj) { return FALSE; }
     struct Object* player = nearest_player_to_object(o);
     s32 angleToPlayer = player ? obj_angle_to_object(o, player) : 0;
     if (o->oEyerokReceivedAttack != 0 && abs_angle_diff(angleToPlayer, o->oFaceAngleYaw) < 0x3000) {
@@ -279,7 +281,8 @@ static void eyerok_hand_pound_ground(void) {
 }
 
 static void eyerok_hand_act_sleep(void) {
-    if (o->parentObj->oAction != EYEROK_BOSS_ACT_SLEEP
+    if (!o->parentObj) { return; }
+    if (o->parentObj && o->parentObj->oAction != EYEROK_BOSS_ACT_SLEEP
         && ++o->oEyerokHandWakeUpTimer > -3 * o->oBehParams2ndByte) {
         if (cur_obj_check_if_near_animation_end()) {
             o->parentObj->oEyerokBossNumHands += 1;
@@ -305,6 +308,7 @@ static void eyerok_hand_act_sleep(void) {
 }
 
 static void eyerok_hand_act_idle(void) {
+    if (!o->parentObj) { return; }
     struct Object* player = nearest_player_to_object(o);
     s32 angleToPlayer = player ? obj_angle_to_object(o, player) : 0;
     cur_obj_init_animation_with_sound(2);
@@ -342,6 +346,7 @@ static void eyerok_hand_act_idle(void) {
 }
 
 static void eyerok_hand_act_open(void) {
+    if (!o->parentObj) { return; }
     struct Object* player = nearest_player_to_object(o);
     s32 angleToPlayer = player ? obj_angle_to_object(o, player) : 0;
     o->parentObj->oEyerokBossUnk1AC = o->oBehParams2ndByte;
@@ -365,6 +370,7 @@ static void eyerok_hand_act_open(void) {
 }
 
 static void eyerok_hand_act_show_eye(void) {
+    if (!o->parentObj) { return; }
     struct Object* player = nearest_player_to_object(o);
     s32 angleToPlayer = player ? obj_angle_to_object(o, player) : 0;
     UNUSED s16 val06;
@@ -373,7 +379,7 @@ static void eyerok_hand_act_show_eye(void) {
     cur_obj_play_sound_at_anim_range(0, 0, SOUND_OBJ_EYEROK_SHOW_EYE);
 
     if (!eyerok_hand_check_attacked()) {
-        if (o->parentObj->oEyerokBossActiveHand == 0) {
+        if (o->parentObj && o->parentObj->oEyerokBossActiveHand == 0) {
             if (o->oAnimState < 3) {
                 o->oAnimState += 1;
             } else if (cur_obj_check_if_near_animation_end()) {
@@ -385,13 +391,13 @@ static void eyerok_hand_act_show_eye(void) {
                 if (o->oEyerokHandUnkFC != 0) {
                     o->oEyerokHandUnkFC -= 1;
                 }
-                o->oAnimState = D_80331BA4[o->oEyerokHandUnkFC];
+                o->oAnimState = BHV_ARR(D_80331BA4, o->oEyerokHandUnkFC, s8);
             } else {
                 o->oEyerokHandUnkFC = 5;
                 o->oEyerokHandUnk100 = random_linear_offset(20, 50);
             }
 
-            if (o->parentObj->oEyerokBossNumHands != 2) {
+            if (o->parentObj && o->parentObj->oEyerokBossNumHands != 2) {
                 obj_face_yaw_approach(o->oMoveAngleYaw, 0x800);
                 if (o->oTimer > 10
                     && ((player && o->oPosZ - player->oPosZ > 0.0f) || (o->oMoveFlags & OBJ_MOVE_HIT_EDGE))) {
@@ -404,6 +410,7 @@ static void eyerok_hand_act_show_eye(void) {
 }
 
 static void eyerok_hand_act_close(void) {
+    if (!o->parentObj) { return; }
     if (cur_obj_init_anim_check_frame(7, 1)) {
         o->collisionData = segmented_to_virtual(ssl_seg7_collision_07028274);
 
@@ -435,6 +442,7 @@ static void eyerok_hand_act_recover(void) {
 }
 
 static void eyerok_hand_act_become_active(void) {
+    if (!o->parentObj) { return; }
     if (o->parentObj->oEyerokBossActiveHand == 0 || o->parentObj->oEyerokBossNumHands != 2) {
         o->oAction = EYEROK_HAND_ACT_RETREAT;
         o->parentObj->oEyerokBossActiveHand = o->oBehParams2ndByte;
@@ -454,6 +462,7 @@ static void eyerok_hand_act_die_event(void) {
 }
 
 static void eyerok_hand_act_die(void) {
+    if (!o->parentObj) { return; }
     if (cur_obj_init_anim_and_check_if_end(1)) {
         o->parentObj->oEyerokBossUnk1AC = 0;
         eyerok_hand_act_die_event();
@@ -490,6 +499,7 @@ static void eyerok_hand_act_retreat(void) {
 }
 
 static void eyerok_hand_act_target_mario(void) {
+    if (!o->parentObj) { return; }
     struct Object* player = nearest_player_to_object(o);
     s32 angleToPlayer = player ? obj_angle_to_object(o, player) : 0;
     if (eyerok_check_mario_relative_z(400) != 0 || (player && o->oPosZ - player->oPosZ > 0.0f)
@@ -553,6 +563,7 @@ static void eyerok_hand_act_fist_push(void) {
 }
 
 static void eyerok_hand_act_fist_sweep(void) {
+    if (!o->parentObj) { return; }
     if (o->oPosZ - o->parentObj->oPosZ < 1000.0f || (o->oMoveFlags & OBJ_MOVE_HIT_EDGE)) {
         o->oAction = EYEROK_HAND_ACT_RETREAT;
         o->oForwardVel = 0.0f;
@@ -564,6 +575,7 @@ static void eyerok_hand_act_fist_sweep(void) {
 }
 
 static void eyerok_hand_act_begin_double_pound(void) {
+    if (!o->parentObj) { return; }
     f32 sp4;
 
     if (o->parentObj->oEyerokBossUnk104 < 0
@@ -582,6 +594,7 @@ static void eyerok_hand_act_begin_double_pound(void) {
 }
 
 static void eyerok_hand_act_double_pound(void) {
+    if (!o->parentObj) { return; }
     if (o->parentObj->oEyerokBossNumHands != 2) {
         o->parentObj->oEyerokBossActiveHand = o->oBehParams2ndByte;
     }
@@ -608,6 +621,7 @@ static void eyerok_hand_act_double_pound(void) {
 }
 
 void bhv_eyerok_hand_loop(void) {
+    if (!o->parentObj) { return; }
     if (o->oAction == EYEROK_HAND_ACT_DEAD) {
         eyerok_hand_act_die_event();
         return;
@@ -679,7 +693,7 @@ void bhv_eyerok_hand_loop(void) {
     o->header.gfx.scale[0] = 1.5f * o->oBehParams2ndByte;
 
     if (o->oAction != oldAction) {
-        if (sync_object_is_owned_locally(o->parentObj->oSyncID)) {
+        if (o->parentObj && sync_object_is_owned_locally(o->parentObj->oSyncID)) {
             eyerokBossImmediateUpdate = TRUE;
         } else {
             o->oAction = EYEROK_HAND_ACT_PAUSE;

src/game/behaviors/falling_pillar.inc.c

@@ -129,6 +129,7 @@ void bhv_falling_pillar_loop(void) {
  * Main loop for the invisible hitboxes.
  */
 void bhv_falling_pillar_hitbox_loop(void) {
+    if (!o->parentObj) { return; }
     // Get the state of the pillar.
     s32 pitch = o->parentObj->oFaceAnglePitch;
     s32 yaw = o->parentObj->oFaceAngleYaw;

src/game/behaviors/ferris_wheel.inc.c

@@ -31,6 +31,10 @@ void bhv_ferris_wheel_axle_init(void) {
     struct Object *platform;
     s32 i;
 
+    if (!BHV_ARR_CHECK(sFerrisWheelProperties, o->oBehParams2ndByte, struct FerrisWheelProperties)) {
+        return;
+    }
+
     o->collisionData = segmented_to_virtual(sFerrisWheelProperties[o->oBehParams2ndByte].axleCollision);
 
     for (i = 0; i < 4; i++) {
@@ -60,6 +64,8 @@ void bhv_ferris_wheel_platform_update(void) {
     f32 offsetXZ;
     s16 offsetAngle;
 
+    if (!o->parentObj) { return; }
+
     obj_perform_position_op(POS_OP_SAVE_POSITION);
 
     offsetAngle = o->parentObj->oFaceAngleRoll + o->oBehParams2ndByte * 0x4000;

src/game/behaviors/fish.inc.c

@@ -8,10 +8,10 @@
  * These settings are animations, colour, and spawn quantity.
  */
 static void fish_spawner_act_spawn(void) {
-    s32 i;
+    s32 i = 0;
-    s32 schoolQuantity;
+    s32 schoolQuantity = 0;
-    s16 model;
+    s16 model = MODEL_ERROR_MODEL;
-    const struct Animation * const *fishAnimation;
+    const struct Animation * const *fishAnimation = NULL;
     struct Object *fishObject;
 
     switch (o->oBehParams2ndByte) {
@@ -280,7 +280,7 @@ void bhv_fish_loop(void)
     cur_obj_move_using_fvel_and_gravity();
 
     // If the parent object has action set to two, then delete the fish object.
-    if (o->parentObj->oAction == FISH_SPAWNER_ACT_RESPAWN) {
+    if (!o->parentObj || o->parentObj->oAction == FISH_SPAWNER_ACT_RESPAWN) {
         obj_mark_for_deletion(o);
     }
 }

src/game/behaviors/flamethrower.inc.c

@@ -20,9 +20,9 @@ void bhv_flamethrower_flame_loop(void) {
             o->oVelY = 0;
             o->oPosY = o->oFloorHeight + 25.0f * size;
         }
-        sp18 = o->parentObj->oFlameThowerFlameUnk110 / 1.2;
+        sp18 = o->parentObj ? o->parentObj->oFlameThowerFlameUnk110 / 1.2 : 0;
     } else
-        sp18 = o->parentObj->oFlameThowerFlameUnk110;
+        sp18 = o->parentObj ? o->parentObj->oFlameThowerFlameUnk110 : 0;
     cur_obj_scale(size);
     if (o->oBehParams2ndByte == 4)
         o->oPosY += o->oForwardVel; // weird?

src/game/behaviors/flying_bookend_switch.inc.c

@@ -336,6 +336,7 @@ void bhv_book_switch_loop(void) {
 
     o->header.gfx.scale[0] = 2.0f;
     o->header.gfx.scale[1] = 0.9f;
+    if (!o->parentObj) { return; }
 
     if (o->parentObj->oAction == 4) {
         obj_mark_for_deletion(o);

src/game/behaviors/goomba.inc.c

@@ -138,12 +138,9 @@ static void goomba_begin_jump(void) {
  * comes back.
  */
 void mark_goomba_as_dead(void) {
-    if (o->parentObj != o) {
+    if (o->parentObj && o->parentObj != o) {
-        set_object_respawn_info_bits(o->parentObj,
+        set_object_respawn_info_bits(o->parentObj, (o->oBehParams2ndByte & GOOMBA_BP_TRIPLET_FLAG_MASK) >> 2);
-                                     (o->oBehParams2ndByte & GOOMBA_BP_TRIPLET_FLAG_MASK) >> 2);
+        o->parentObj->oBehParams = o->parentObj->oBehParams | (o->oBehParams2ndByte & GOOMBA_BP_TRIPLET_FLAG_MASK) << 6;
-
-        o->parentObj->oBehParams =
-            o->parentObj->oBehParams | (o->oBehParams2ndByte & GOOMBA_BP_TRIPLET_FLAG_MASK) << 6;
     }
 }
 
@@ -282,7 +279,7 @@ void bhv_goomba_update(void) {
     if (obj_update_standard_actions(o->oGoombaScale)) {
         // If this goomba has a spawner and mario moved away from the spawner,
         // unload
-        if (o->parentObj != o) {
+        if (o->parentObj && o->parentObj != o) {
             if (o->parentObj->oAction == GOOMBA_TRIPLET_SPAWNER_ACT_UNLOADED) {
                 obj_mark_for_deletion(o);
             }

src/game/behaviors/grill_door.inc.c

@@ -5,7 +5,7 @@ struct OpenableGrill gOpenableGrills[] = { { 320, MODEL_BOB_BARS_GRILLS, bob_seg
 
 void bhv_openable_cage_door_loop(void) {
     if (gCurrentObject->oAction == 0) {
-        if (gCurrentObject->parentObj->oOpenableGrillUnk88 != 0)
+        if (gCurrentObject->parentObj && gCurrentObject->parentObj->oOpenableGrillUnk88 != 0)
             gCurrentObject->oAction++;
     } else if (gCurrentObject->oAction == 1) {
         if (gCurrentObject->oTimer < 64)
@@ -21,6 +21,7 @@ void bhv_openable_grill_loop(void) {
     switch (o->oAction) {
         case 0:
             grillIdx = o->oBehParams2ndByte;
+            if (BHV_ARR_CHECK(gOpenableGrills, grillIdx, struct OpenableGrill)) {
                 grillObj = spawn_object_relative(-1, gOpenableGrills[grillIdx].halfWidth, 0, 0, o, gOpenableGrills[grillIdx].modelID,
                                                 bhvOpenableCageDoor);
                 if (grillObj != NULL) {
@@ -33,6 +34,7 @@ void bhv_openable_grill_loop(void) {
                     obj_set_collision_data(grillObj, gOpenableGrills[grillIdx].collision);
                 }
                 o->oAction++;
+            }
             break;
         case 1:
             if ((o->oOpenableGrillUnkF4 = cur_obj_nearest_object_with_behavior(bhvFloorSwitchGrills))
@@ -41,7 +43,7 @@ void bhv_openable_grill_loop(void) {
             break;
         case 2:
             grillObj = o->oOpenableGrillUnkF4;
-            if (grillObj->oAction == 2) {
+            if (grillObj && grillObj->oAction == 2) {
                 o->oOpenableGrillUnk88 = 2;
                 cur_obj_play_sound_2(SOUND_GENERAL_CAGE_OPEN);
                 o->oAction++;

src/game/behaviors/ground_particles.inc.c

@@ -25,8 +25,10 @@ void spawn_smoke_with_velocity(void) {
 
 // TODO Fix name
 void clear_particle_flags(u32 flags) {
+    if (o->parentObj) {
         o->parentObj->oActiveParticleFlags &= flags ^ -1; // Clear the flags given (could just be ~flags)
     }
+}
 
 void bhv_ground_snow_init(void) {
     clear_particle_flags(1 << 16);

src/game/behaviors/heave_ho.inc.c

@@ -11,6 +11,7 @@ void bhv_heave_ho_throw_mario_loop(void) {
     o->oParentRelativePosX = 200.0f;
     o->oParentRelativePosY = -50.0f;
     o->oParentRelativePosZ = 0.0f;
+    if (o->parentObj) {
         o->oMoveAngleYaw = o->parentObj->oMoveAngleYaw;
         switch (o->parentObj->oHeaveHoUnk88) {
             case 0:
@@ -31,6 +32,7 @@ void bhv_heave_ho_throw_mario_loop(void) {
                 break;
         }
     }
+}
 
 void heave_ho_act_1(void) {
     s32 sp1C = 0;

src/game/behaviors/king_bobomb.inc.c

@@ -366,7 +366,7 @@ void king_bobomb_move(void) {
     else
         cur_obj_move_using_fvel_and_gravity();
     CUR_OBJ_CALL_ACTION_FUNCTION(sKingBobombActions);
-    exec_anim_sound_state(sKingBobombSoundStates);
+    exec_anim_sound_state(sKingBobombSoundStates, sizeof(sKingBobombSoundStates) / sizeof(struct SoundState));
     s32 distanceToPlayer = dist_between_objects(o, gMarioStates[0].marioObj);
     if (distanceToPlayer < 5000.0f * draw_distance_scalar())
         cur_obj_enable_rendering();

src/game/behaviors/koopa.inc.c

@@ -587,7 +587,7 @@ s32 obj_begin_race(s32 noTimer) {
             level_control_timer(TIMER_CONTROL_SHOW);
             level_control_timer(TIMER_CONTROL_START);
 
-            o->parentObj->oKoopaRaceEndpointRaceBegun = TRUE;
+            if (o->parentObj) { o->parentObj->oKoopaRaceEndpointRaceBegun = TRUE; }
         }
 
         // Unfreeze mario and disable time stop to begin the race
@@ -630,7 +630,7 @@ u8 koopa_the_quick_act_show_init_text_continue_dialog(void) { return o->oAction
 static void koopa_the_quick_act_show_init_text(void) {
     struct MarioState* marioState = nearest_mario_state_to_object(o);
     s32 response = 0;
-    if (marioState && should_start_or_continue_dialog(marioState, o)) {
+    if (marioState && should_start_or_continue_dialog(marioState, o) && BHV_ARR_CHECK(sKoopaTheQuickProperties, o->oKoopaTheQuickRaceIndex, struct KoopaTheQuickProperties)) {
         response = obj_update_race_proposition_dialog(&gMarioStates[0], *sKoopaTheQuickProperties[o->oKoopaTheQuickRaceIndex].initText, koopa_the_quick_act_show_init_text_continue_dialog);
     }
 
@@ -738,7 +738,7 @@ static void koopa_the_quick_act_race(void) {
                     struct Object* player = nearest_player_to_object(o);
                     s32 distanceToPlayer = player ? dist_between_objects(o, player) : 10000;
 
-                    if (o->parentObj->oKoopaRaceEndpointRaceStatus != 0 && distanceToPlayer > 1500.0f
+                    if (o->parentObj  && o->parentObj->oKoopaRaceEndpointRaceStatus != 0 && distanceToPlayer > 1500.0f
                         && (o->oPathedPrevWaypointFlags & WAYPOINT_MASK_00FF) < 28) {
                         // Move faster if mario has already finished the race or
                         // cheated by shooting from cannon
@@ -840,6 +840,7 @@ static void koopa_the_quick_act_after_race(void) {
     cur_obj_init_animation_with_sound(7);
 
     struct MarioState* marioState = nearest_mario_state_to_object(o);
+    if (!o->parentObj) { return; }
 
     if (o->parentObj->oKoopaRaceEndpointUnk100 == 0) {
         if (marioState == &gMarioStates[0] && cur_obj_can_mario_activate_textbox_2(&gMarioStates[0], 400.0f, 400.0f)) {
@@ -913,7 +914,7 @@ static void koopa_the_quick_update(void) {
             break;
     }
 
-    if (o->parentObj != o) {
+    if (o->parentObj != o && o->parentObj) {
         if (dist_between_objects(o, o->parentObj) < 400.0f) {
             o->parentObj->oKoopaRaceEndpointKoopaFinished = TRUE;
         }

src/game/behaviors/lll_floating_wood_piece.inc.c

@@ -10,7 +10,7 @@ void bhv_lll_wood_piece_loop(void) {
         o->oPosY -= 100.0f;
     o->oPosY += sins(o->oLllWoodPieceOscillationTimer) * 3.0f;
     o->oLllWoodPieceOscillationTimer += 0x400;
-    if (o->parentObj->oAction == 2)
+    if (o->parentObj && o->parentObj->oAction == 2)
         obj_mark_for_deletion(o);
 }
 

src/game/behaviors/lll_octagonal_rotating_mesh.inc.c

@@ -8,6 +8,7 @@ s16 *D_8032F8C8[] = { D_8032F860, D_8032F894 };
 
 
 s32 lll_octagonal_mesh_move(s16 *a0, s32 a1) {
+    if (!BHV_ARR_CHECK(D_8032F860, a1, s16)) { return 0; }
     switch (a0[a1]) {
         case 4:
             o->oMoveAngleYaw = a0[a1 + 2];
@@ -70,9 +71,9 @@ void bhv_lll_moving_octagonal_mesh_platform_loop(void) {
     if (o->oAction == 0) {
         o->oHorizontalMovementUnkF8 = 0;
         o->oAction++;
-    } else
+    } else if (BHV_ARR_CHECK(D_8032F8C8, o->oBehParams2ndByte, s16*)) {
-        o->oHorizontalMovementUnkF8 =
+        o->oHorizontalMovementUnkF8 = lll_octagonal_mesh_move(D_8032F8C8[o->oBehParams2ndByte], o->oHorizontalMovementUnkF8);
-            lll_octagonal_mesh_move(D_8032F8C8[o->oBehParams2ndByte], o->oHorizontalMovementUnkF8);
+    }
     print_debug_top_down_objectinfo("number %d\n", o->oHorizontalMovementUnkF8);
     cur_obj_move_using_fvel_and_gravity();
     if (lll_octagonal_mesh_find_y_offset(&o->oHorizontalMovementUnk104, &o->oHorizontalMovementUnk108, 0x400, -80)) {

src/game/behaviors/lll_rotating_hex_flame.inc.c

@@ -4,10 +4,15 @@ void bhv_lll_rotating_hex_flame_loop(void) {
     f32 sp24 = o->oLllRotatingHexFlameUnkF4;
     f32 sp20 = o->oLllRotatingHexFlameUnkF8;
     f32 sp1C = o->oLllRotatingHexFlameUnkFC;
+
+    if (o->parentObj) {
         cur_obj_set_pos_relative(o->parentObj, sp24, sp20, sp1C);
         o->oPosY = o->parentObj->oPosY + 100.0f;
         if (o->parentObj->oAction == 3)
             obj_mark_for_deletion(o);
+    } else {
+        obj_mark_for_deletion(o);
+    }
 }
 
 void fire_bar_spawn_flames(s16 a0) {

src/game/behaviors/mips.inc.c

@@ -146,12 +146,14 @@ void bhv_mips_act_wait_for_nearby_mario(void) {
 void bhv_mips_act_follow_path(void) {
     s16 collisionFlags = 0;
     s32 followStatus = 0;
-    struct Waypoint ***pathBase;
+    struct Waypoint **pathBase;
     struct Waypoint *waypoint;
 
     // Retrieve current waypoint.
-    pathBase = segmented_to_virtual(sMipsPaths);
+    pathBase = segmented_to_virtual(sMipsPaths[0]);
-    waypoint = segmented_to_virtual(*(*pathBase + o->oMipsStartWaypointIndex));
+    s32 length = get_trajectory_length((Trajectory*)pathBase);
+    if (o->oMipsStartWaypointIndex >= length) { return; }
+    waypoint = segmented_to_virtual(pathBase[o->oMipsStartWaypointIndex]);
 
     // Set start waypoint and follow the path from there.
     o->oPathedStartWaypoint = waypoint;

src/game/behaviors/moat_drainer.inc.c

@@ -2,8 +2,10 @@
 
 void bhv_invisible_objects_under_bridge_init(void) {
     if (save_file_get_flags() & SAVE_FLAG_MOAT_DRAINED) {
+        if (gEnvironmentRegions) {
             gEnvironmentRegions[6] = -800;
             gEnvironmentRegions[12] = -800;
+        }
         o->oAction = 2;
     } else {
         o->oAction = 0;
@@ -18,6 +20,7 @@ void bhv_invisible_objects_under_bridge_loop(void) {
             break;
         case 1:
             // approach -800
+            if (gEnvironmentRegions) {
                 gEnvironmentRegions[6]  = (s16)approach_f32_symmetric(gEnvironmentRegions[6],  -800, 5.0f);
                 gEnvironmentRegions[12] = (s16)approach_f32_symmetric(gEnvironmentRegions[12], -800, 5.0f);
                 if (gEnvironmentRegions[6] <= -795 && gEnvironmentRegions[12] <= -795) {
@@ -25,6 +28,7 @@ void bhv_invisible_objects_under_bridge_loop(void) {
                     gEnvironmentRegions[12] = -800;
                     o->oAction = 2;
                 }
+            }
             break;
         case 2:
             // clean up

src/game/behaviors/moneybag.inc.c

@@ -196,7 +196,9 @@ void bhv_moneybag_loop(void) {
             o->oOpacity += 12;
             if (o->oOpacity >= 256) {
                 o->oOpacity = 255;
+                if (o->parentObj) {
                     o->parentObj->activeFlags = ACTIVE_FLAG_DEACTIVATED;
+                }
                 o->oAction = MONEYBAG_ACT_MOVE_AROUND;
             }
             break;

src/game/behaviors/monty_mole.inc.c

@@ -64,6 +64,7 @@ static struct Object *monty_mole_select_available_hole(f32 minDistToMario) {
 
     struct Object *hole = sMontyMoleHoleList;
     s32 numAvailableHoles = 0;
+    s32 sanity = 0;
 
     while (hole != NULL) {
         player = nearest_player_to_object(hole);
@@ -74,6 +75,8 @@ static struct Object *monty_mole_select_available_hole(f32 minDistToMario) {
             }
         }
 
+        if (sanity++ > 100) { break; }
+        if (hole == hole->parentObj) { break; }
         hole = hole->parentObj;
     }
 

src/game/behaviors/mr_blizzard.inc.c

@@ -436,7 +436,7 @@ void bhv_mr_blizzard_update(void) {
 
 static void mr_blizzard_snowball_act_0(void) {
     cur_obj_move_using_fvel_and_gravity();
-    if (o->parentObj->prevObj == o) {
+    if (o->parentObj && o->parentObj->prevObj == o) {
         o->oAction = 1;
         o->oParentRelativePosX = 190.0f;
         o->oParentRelativePosY = o->oParentRelativePosZ = -38.0f;
@@ -453,7 +453,7 @@ static void mr_blizzard_snowball_act_1(void) {
 
     f32 marioDist;
 
-    if (o->parentObj->prevObj == NULL) {
+    if (o->parentObj && o->parentObj->prevObj == NULL) {
         if (o->parentObj->oAction == MR_BLIZZARD_ACT_THROW_SNOWBALL) {
             marioDist = distanceToPlayer;
             if (marioDist > 800.0f) {

src/game/behaviors/mr_i.inc.c

@@ -54,6 +54,10 @@ void spawn_mr_i_particle(void) {
 }
 
 void bhv_mr_i_body_loop(void) {
+    if (!o->parentObj) {
+        obj_mark_for_deletion(o);
+        return;
+    }
     obj_copy_pos_and_angle(o, o->parentObj);
     if (!(o->activeFlags & ACTIVE_FLAG_IN_DIFFERENT_ROOM)) {
         obj_copy_scale(o, o->parentObj);

src/game/behaviors/platform_on_track.inc.c

@@ -93,10 +93,13 @@ void bhv_platform_on_track_init(void) {
 
         o->oPlatformOnTrackIsNotSkiLift = o->oPlatformOnTrackType - PLATFORM_ON_TRACK_TYPE_SKI_LIFT;
 
-        o->collisionData =
+        if (BHV_ARR_CHECK(sPlatformOnTrackCollisionModels, o->oPlatformOnTrackType, void const *)) {
-            segmented_to_virtual(sPlatformOnTrackCollisionModels[o->oPlatformOnTrackType]);
+            o->collisionData = segmented_to_virtual(sPlatformOnTrackCollisionModels[o->oPlatformOnTrackType]);
+        }
 
+        if (BHV_ARR_CHECK(sPlatformOnTrackPaths, pathIndex, Trajectory**)) {
             o->oPlatformOnTrackStartWaypoint = segmented_to_virtual(*sPlatformOnTrackPaths[pathIndex]);
+        }
 
         o->oPlatformOnTrackIsNotHMC = pathIndex - 4;
 
@@ -353,8 +356,9 @@ void bhv_platform_on_track_update(void) {
  */
 void bhv_track_ball_update(void) {
     // Despawn after the elevator passes this ball
-    s16 relativeIndex =
+    s16 relativeIndex = o->parentObj ?
-        (s16) o->oBehParams2ndByte - (s16) o->parentObj->oPlatformOnTrackBaseBallIndex - 1;
+        ((s16) o->oBehParams2ndByte - (s16) o->parentObj->oPlatformOnTrackBaseBallIndex - 1)
+        : 0;
     if (relativeIndex < 1 || relativeIndex > 5) {
         obj_mark_for_deletion(o);
     }

src/game/behaviors/pyramid_top.inc.c

@@ -157,7 +157,9 @@ void bhv_pyramid_pillar_touch_detector_loop(void) {
     cur_obj_become_tangible();
     if ((o->oInteractStatus & INT_STATUS_INTERACTED) || obj_check_if_collided_with_object(o, gMarioStates[0].marioObj) == 1) {
         // Increase the pyramid top's count of pillars touched.
+        if (o->parentObj) {
             o->parentObj->oPyramidTopPillarsTouched++;
+        }
         o->activeFlags = ACTIVE_FLAG_DEACTIVATED;
         if (!(o->oInteractStatus & INT_STATUS_INTERACTED)) {
             network_send_collect_item(o);

src/game/behaviors/racing_penguin.inc.c

@@ -31,10 +31,12 @@ void bhv_racing_penguin_the_quick_override_ownership(u8* shouldOverride, u8* sho
 
 void bhv_racing_penguin_run_once(void) {
     cur_obj_align_gfx_with_floor();
+    if (BHV_ARR_CHECK(sRacingPenguinData, o->oBehParams2ndByte, struct RacingPenguinData)) {
         cur_obj_push_mario_away_from_cylinder(
             *sRacingPenguinData[o->oBehParams2ndByte].radius,
             *sRacingPenguinData[o->oBehParams2ndByte].height);
     }
+}
 
 void bhv_racing_penguin_init(void) {
     if (gMarioStates[0].numStars == 120) {
@@ -44,10 +46,10 @@ void bhv_racing_penguin_init(void) {
     }
 
     struct Object* objFinishLine = cur_obj_nearest_object_with_behavior(bhvPenguinRaceFinishLine);
-    objFinishLine->parentObj = o;
+    if (objFinishLine) { objFinishLine->parentObj = o; }
 
     struct Object* objShortcutCheck = cur_obj_nearest_object_with_behavior(bhvPenguinRaceShortcutCheck);
-    objShortcutCheck->parentObj = o;
+    if (objShortcutCheck) { objShortcutCheck->parentObj = o; }
 
     struct SyncObject* so  = sync_object_init(o, SYNC_DISTANCE_ONLY_EVENTS);
     if (so) {
@@ -95,6 +97,7 @@ u8 racing_penguin_act_show_init_text_continue_dialog(void) { return o->oAction =
 
 static void racing_penguin_act_show_init_text(void) {
     if (!gMarioStates[0].visibleToEnemies) { return; }
+    if (!BHV_ARR_CHECK(sRacingPenguinData, o->oBehParams2ndByte, struct RacingPenguinData)) { return; }
     s32 response = obj_update_race_proposition_dialog(&gMarioStates[0], *sRacingPenguinData[o->oBehParams2ndByte].text, racing_penguin_act_show_init_text_continue_dialog);
 
     if (response == 1) {
@@ -136,12 +139,12 @@ static void racing_penguin_act_race(void) {
 
     // prevent segfault / error state
     if (o->oPathedStartWaypoint == NULL) {
-        struct Object* child;
+        struct Object* child = NULL;
         child = cur_obj_nearest_object_with_behavior(bhvPenguinRaceFinishLine);
-        child->parentObj = o;
+        if (child) { child->parentObj = o; }
 
         child = cur_obj_nearest_object_with_behavior(bhvPenguinRaceShortcutCheck);
-        child->parentObj = o;
+        if (child) { child->parentObj = o; }
 
         o->oPathedStartWaypoint = o->oPathedPrevWaypoint = segmented_to_virtual(gBehaviorValues.trajectories.RacingPenguinTrajectory);
         o->oPathedPrevWaypointFlags = 0;
@@ -295,6 +298,9 @@ void bhv_racing_penguin_update(void) {
 void bhv_penguin_race_finish_line_update(void) {
     struct Object* player = nearest_player_to_object(o);
     s32 distanceToPlayer = player ? dist_between_objects(o, player) : 10000;
+    if (!o->parentObj) {
+        return;
+    }
 
     if (o->parentObj->oRacingPenguinReachedBottom
         || (player && distanceToPlayer < 1000.0f && player->oPosZ - o->oPosZ < 0.0f)) {
@@ -308,7 +314,7 @@ void bhv_penguin_race_finish_line_update(void) {
 void bhv_penguin_race_shortcut_check_update(void) {
     struct Object* player = nearest_player_to_object(o);
     s32 distanceToPlayer = player ? dist_between_objects(o, player) : 10000;
-    if (distanceToPlayer < 500.0f && !o->parentObj->oRacingPenguinMarioCheated) {
+    if (distanceToPlayer < 500.0f && o->parentObj && !o->parentObj->oRacingPenguinMarioCheated) {
         o->parentObj->oRacingPenguinMarioCheated = TRUE;
         network_send_object(o->parentObj);
     }

src/game/behaviors/rotating_octagonal_plat.inc.c

@@ -8,8 +8,10 @@ void const *D_80331A44[] = {
 s16 D_80331A4C[] = { 300, -300, 600, -600 };
 
 void bhv_rotating_octagonal_plat_init(void) {
+    if (BHV_ARR_CHECK(D_80331A44, (u8)(o->oBehParams >> 16), void const*)) {
         o->collisionData = segmented_to_virtual(D_80331A44[(u8)(o->oBehParams >> 16)]);
-    o->oAngleVelYaw = D_80331A4C[(u8)(o->oBehParams >> 24)];
+    }
+    o->oAngleVelYaw = BHV_ARR(D_80331A4C, (u8)(o->oBehParams >> 24), s16);
 }
 
 void bhv_rotating_octagonal_plat_loop(void) {

src/game/behaviors/rotating_platform.inc.c

@@ -39,7 +39,7 @@ void bhv_wf_rotating_wooden_platform_loop(void) {
 
 void bhv_rotating_platform_loop(void) {
     s8 sp1F = o->oBehParams >> 24;
-    if (o->oTimer == 0) {
+    if (o->oTimer == 0 && BHV_ARR_CHECK(sWFRotatingPlatformData, o->oBehParams2ndByte, struct WFRotatingPlatformData)) {
         obj_set_collision_data(o, sWFRotatingPlatformData[o->oBehParams2ndByte].collisionData);
         o->oCollisionDistance = sWFRotatingPlatformData[o->oBehParams2ndByte].collisionDistance;
         cur_obj_scale(sWFRotatingPlatformData[o->oBehParams2ndByte].scale * 0.01f);

src/game/behaviors/scuttlebug.inc.c

@@ -129,7 +129,7 @@ void bhv_scuttlebug_loop(void) {
     if (o->parentObj != o) {
         if (obj_is_hidden(o))
             obj_mark_for_deletion(o);
-        if (o->activeFlags == ACTIVE_FLAG_DEACTIVATED) {
+        if (o->activeFlags == ACTIVE_FLAG_DEACTIVATED && o->parentObj) {
             o->parentObj->oScuttlebugSpawnerUnk88 = 1;
             network_send_object(o->parentObj);
         }

src/game/behaviors/seesaw_platform.inc.c

@@ -16,7 +16,9 @@ static void const *sSeesawPlatformCollisionModels[] = {
  * Init function for bhvSeesawPlatform.
  */
 void bhv_seesaw_platform_init(void) {
+    if (BHV_ARR_CHECK(sSeesawPlatformCollisionModels, o->oBehParams2ndByte, void const*)) {
         o->collisionData = segmented_to_virtual(sSeesawPlatformCollisionModels[o->oBehParams2ndByte]);
+    }
 
     // The S-shaped seesaw platform in BitS is large, so increase its collision
     // distance

src/game/behaviors/sl_walking_penguin.inc.c

@@ -61,7 +61,7 @@ void bhv_sl_walking_penguin_loop(void) {
                 o->oSLWalkingPenguinCurStep = 0;
                 o->oSLWalkingPenguinCurStepTimer = 0;
             }
-            
+            if (BHV_ARR_CHECK(sSLWalkingPenguinErraticSteps, o->oSLWalkingPenguinCurStep, struct SLWalkingPenguinStep)) {
                 if (o->oSLWalkingPenguinCurStepTimer < sSLWalkingPenguinErraticSteps[o->oSLWalkingPenguinCurStep].stepLength)
                     o->oSLWalkingPenguinCurStepTimer++;
                 else {
@@ -84,6 +84,7 @@ void bhv_sl_walking_penguin_loop(void) {
                         sSLWalkingPenguinErraticSteps[o->oSLWalkingPenguinCurStep].animSpeed
                     );
                 }
+            }
             break;
 
         // At the end, turn around and prepare to head back across the bridge.

src/game/behaviors/snowman.inc.c

@@ -256,6 +256,10 @@ void bhv_snowmans_head_loop(void) {
 }
 
 void bhv_snowmans_body_checkpoint_loop(void) {
+    if (!o->parentObj) {
+        return;
+    }
+
     if (is_point_within_radius_of_mario(o->oPosX, o->oPosY, o->oPosZ, 800)) {
         o->parentObj->oSnowmansBottomUnk1AC++;
         o->activeFlags = ACTIVE_FLAG_DEACTIVATED;

src/game/behaviors/sparkle_spawn_star.inc.c

@@ -13,8 +13,9 @@ struct ObjectHitbox sSparkleSpawnStarHitbox = {
 };
 
 void bhv_spawned_star_init(void) {
-    if (!(o->oInteractionSubtype & INT_SUBTYPE_NO_EXIT))
+    if (!(o->oInteractionSubtype & INT_SUBTYPE_NO_EXIT) && o->parentObj) {
         o->oBehParams = o->parentObj->oBehParams;
+    }
     s32 sp24 = (o->oBehParams >> 24) & 0xFF;
     if (bit_shift_left(sp24) & save_file_get_star_flags(gCurrSaveFileNum - 1, gCurrCourseNum - 1))
         cur_obj_set_model(smlua_model_util_load(E_MODEL_TRANSPARENT_STAR));

src/game/behaviors/thi_top.inc.c

@@ -41,7 +41,7 @@ void bhv_thi_tiny_island_top_loop(void) {
                 }
         } else {
             if (o->oTimer < 50) {
-                gEnvironmentRegions[18]--;
+                if (gEnvironmentRegions) { gEnvironmentRegions[18]--; }
                 cur_obj_play_sound_1(SOUND_ENV_WATER_DRAIN);
             } else {
                 gTHIWaterDrained |= 1;
@@ -50,8 +50,9 @@ void bhv_thi_tiny_island_top_loop(void) {
             }
         }
     } else {
-        if (o->oTimer == 0)
+        if (o->oTimer == 0) {
-            gEnvironmentRegions[18] = 700;
+            if (gEnvironmentRegions) { gEnvironmentRegions[18] = 700; }
+        }
         cur_obj_hide();
     }
 }

src/game/behaviors/tower_platform.inc.c

@@ -1,6 +1,7 @@
 // tower_platform.c.inc
 
 void bhv_wf_solid_tower_platform_loop(void) {
+    if (!o->parentObj) { return; }
     if (o->parentObj->oAction == 1) {
         cur_obj_become_tangible();
         o->header.gfx.node.flags &= ~GRAPH_RENDER_INVISIBLE;
@@ -45,6 +46,7 @@ void bhv_wf_elevator_tower_platform_loop(void) {
             break;
     }
 
+    if (o->parentObj) {
         if (o->parentObj->oAction == 1) {
             cur_obj_become_tangible();
             o->header.gfx.node.flags &= ~GRAPH_RENDER_INVISIBLE;
@@ -53,6 +55,7 @@ void bhv_wf_elevator_tower_platform_loop(void) {
             o->header.gfx.node.flags |= GRAPH_RENDER_INVISIBLE;
         }
     }
+}
 
 void bhv_wf_sliding_tower_platform_loop(void) {
     s32 sp24 = o->oPlatformUnk110 / o->oPlatformUnk10C;
@@ -73,6 +76,7 @@ void bhv_wf_sliding_tower_platform_loop(void) {
     o->oPosX += o->oVelX;
     o->oPosZ += o->oVelZ;
 
+    if (o->parentObj) {
         if (o->parentObj->oAction == 1) {
             cur_obj_become_tangible();
             o->header.gfx.node.flags &= ~GRAPH_RENDER_INVISIBLE;
@@ -81,6 +85,7 @@ void bhv_wf_sliding_tower_platform_loop(void) {
             o->header.gfx.node.flags |= GRAPH_RENDER_INVISIBLE;
         }
     }
+}
 
 void spawn_and_init_wf_platforms(s16 a, const BehaviorScript *bhv) {
     s16 yaw;

src/game/behaviors/tox_box.inc.c

@@ -66,6 +66,7 @@ void tox_box_act_3(void) {
 }
 
 void tox_box_act_0(void) {
+    if (!BHV_ARR_CHECK(D_8032F96C, o->oBehParams2ndByte, s8*)) { return; }
     s8 *sp1C = D_8032F96C[o->oBehParams2ndByte];
     o->oAction = cur_obj_set_direction_table(sp1C);
 }

src/game/behaviors/treasure_chest.inc.c

@@ -17,6 +17,10 @@ static struct ObjectHitbox sTreasureChestBottomHitbox = {
 
 
 void bhv_treasure_chest_top_loop(void) {
+    if (!o->parentObj || !o->parentObj->parentObj) {
+        obj_mark_for_deletion(o);
+        return;
+    }
     struct Object *rootParent = o->parentObj->parentObj;
 
     switch (o->oAction) {
@@ -67,6 +71,7 @@ void bhv_treasure_chest_bottom_init(void) {
 }
 
 void bhv_treasure_chest_bottom_loop(void) {
+    if (!o->parentObj) { return; }
     if (o->parentObj != NULL && o->parentObj->oTreasureChestSound != 0) {
         switch (o->parentObj->oTreasureChestSound) {
             case 1: play_sound(SOUND_GENERAL2_RIGHT_ANSWER, gGlobalSoundSource); break;

src/game/behaviors/triplet_butterfly.inc.c

@@ -36,11 +36,13 @@ static void triplet_butterfly_act_init(void) {
         }
 
         //! TODO: Describe this glitch
+        if (o->parentObj) {
             if (o->parentObj->oTripletButterflySelectedButterfly == o->oBehParams2ndByte) {
                 o->oTripletButterflyType = TRIPLET_BUTTERFLY_TYPE_SPAWN_1UP;
             } else if (o->parentObj->oBehParams2ndByte & TRIPLET_BUTTERFLY_BP_NO_BOMBS) {
                 o->oTripletButterflyType = TRIPLET_BUTTERFLY_TYPE_NORMAL;
             }
+        }
         // Default butterfly type is TRIPLET_BUTTERFLY_TYPE_EXPLODES
 
         o->oAction = TRIPLET_BUTTERFLY_ACT_WANDER;
@@ -82,6 +84,7 @@ static void triplet_butterfly_act_wander(void) {
 }
 
 static void triplet_butterfly_act_activate(void) {
+    if (!BHV_ARR_CHECK(sTripletButterflyActivationData, o->oTripletButterflyType, struct TripletButterflyActivationData)) { return; }
     if (o->oTimer > 20) {
         if (o->oTripletButterflyModel == 0) {
             spawn_object_relative_with_scale(0, 0, -40, 0, 1.5f, o, MODEL_SMOKE, bhvWhitePuffSmoke2);
@@ -90,8 +93,7 @@ static void triplet_butterfly_act_activate(void) {
             obj_set_billboard(o);
             o->oTripletButterflyScale = 0.0f;
             o->oHomeY = o->oPosY;
-        } else if (o->oTripletButterflyScale
+        } else if (o->oTripletButterflyScale >= sTripletButterflyActivationData[o->oTripletButterflyType].scale) {
-                   >= sTripletButterflyActivationData[o->oTripletButterflyType].scale) {
             if (o->oTripletButterflyType != TRIPLET_BUTTERFLY_TYPE_EXPLODES) {
                 spawn_object(o, o->oTripletButterflyModel,
                              sTripletButterflyActivationData[o->oTripletButterflyType].behavior);
@@ -102,8 +104,7 @@ static void triplet_butterfly_act_activate(void) {
             }
         }
 
-        o->oTripletButterflyScale +=
+        o->oTripletButterflyScale += sTripletButterflyActivationData[o->oTripletButterflyType].scale / 30.0f;
-            sTripletButterflyActivationData[o->oTripletButterflyType].scale / 30.0f;
         if (o->oTripletButterflyType == TRIPLET_BUTTERFLY_TYPE_EXPLODES) {
             o->oGraphYOffset = 250.0f * o->oTripletButterflyScale;
             o->oPosY = o->oHomeY - o->oGraphYOffset;

src/game/behaviors/ttc_2d_rotator.inc.c

@@ -37,9 +37,10 @@ static s16 sTTC2DRotatorTimeBetweenTurns[][4] = {
  * Init function for bhvTTC2DRotator.
  */
 void bhv_ttc_2d_rotator_init(void) {
-    o->oTTC2DRotatorMinTimeUntilNextTurn =
+    if (o->oBehParams2ndByte < 2 && gTTCSpeedSetting < 4) {
-        sTTC2DRotatorTimeBetweenTurns[o->oBehParams2ndByte][gTTCSpeedSetting];
+        o->oTTC2DRotatorMinTimeUntilNextTurn = sTTC2DRotatorTimeBetweenTurns[o->oBehParams2ndByte][gTTCSpeedSetting];
         o->oTTC2DRotatorIncrement = o->oTTC2DRotatorSpeed = sTTC2DRotatorSpeeds[o->oBehParams2ndByte];
+    }
 
     struct SyncObject* so = sync_object_init(o, 4000.0f);
     if (so) {

src/game/behaviors/ttc_pit_block.inc.c

@@ -37,7 +37,9 @@ static struct TTCPitBlockProperties sTTCPitBlockProperties[][2] = {
  * Init function for bhvTTCPitBlock.
  */
 void bhv_ttc_pit_block_init(void) {
+    if (BHV_ARR_CHECK(sTTCPitBlockCollisionModels, o->oBehParams2ndByte, Collision const *)) {
         o->collisionData = segmented_to_virtual(sTTCPitBlockCollisionModels[o->oBehParams2ndByte]);
+    }
 
     o->oTTCPitBlockPeakY = o->oPosY + 330.0f;
 
@@ -65,13 +67,15 @@ void bhv_ttc_pit_block_update(void) {
         if (clamp_f32(&o->oPosY, o->oHomeY, o->oTTCPitBlockPeakY)) {
             o->oTTCPitBlockDir = o->oTTCPitBlockDir ^ 0x1;
 
-            if ((o->oTTCPitBlockWaitTime =
+            if (gTTCSpeedSetting < 4) {
-                     sTTCPitBlockProperties[gTTCSpeedSetting][o->oTTCPitBlockDir & 0x1].waitTime)
+                if ((o->oTTCPitBlockWaitTime = sTTCPitBlockProperties[gTTCSpeedSetting][o->oTTCPitBlockDir & 0x1].waitTime) < 0) {
-                < 0) {
                     o->oTTCPitBlockWaitTime = random_mod_offset(10, 20, 6);
                 }
 
+                if (o->oTTCPitBlockDir < 2) {
                     o->oVelY = sTTCPitBlockProperties[gTTCSpeedSetting][o->oTTCPitBlockDir].speed;
+                }
+            }
             o->oTimer = 0;
         }
     }

src/game/behaviors/ttc_rotating_solid.inc.c

@@ -26,7 +26,9 @@ static u8 sTTCRotatingSolidInitialDelays[] = {
  * Init function for bhvTTCRotatingSolid.
  */
 void bhv_ttc_rotating_solid_init(void) {
+    if (BHV_ARR_CHECK(sTTCRotatingSolidCollisionModels, o->oBehParams2ndByte, void const*)) {
         o->collisionData = segmented_to_virtual(sTTCRotatingSolidCollisionModels[o->oBehParams2ndByte]);
+    }
 
     o->oTTCRotatingSolidNumSides = o->oBehParams2ndByte == TTC_ROTATING_SOLID_BP_CUBE ? 4 : 3;
 
@@ -68,8 +70,9 @@ void bhv_ttc_rotating_solid_update(void) {
             if (o->oAngleVelRoll == 0) {
                 cur_obj_play_sound_2(SOUND_GENERAL2_ROTATING_BLOCK_CLICK);
 
-                o->oTTCRotatingSolidNumTurns =
+                if (o->oTTCRotatingSolidNumSides) {
-                    (o->oTTCRotatingSolidNumTurns + 1) % o->oTTCRotatingSolidNumSides;
+                    o->oTTCRotatingSolidNumTurns = (o->oTTCRotatingSolidNumTurns + 1) % o->oTTCRotatingSolidNumSides;
+                }
 
                 o->oTimer = 0;
                 if (gTTCSpeedSetting == TTC_SPEED_RANDOM) {

src/game/behaviors/tumbling_bridge.inc.c

@@ -31,7 +31,7 @@ void bhv_tumbling_bridge_platform_loop(void) {
         }
     }
 
-    if (o->parentObj != NULL && gCurrCourseNum == COURSE_LLL) {
+    if (o->parentObj && gCurrCourseNum == COURSE_LLL) {
         if (o->parentObj->oIntangibleTimer == -1) {
             cur_obj_hide();
             o->oIntangibleTimer = o->parentObj->oIntangibleTimer;
@@ -74,12 +74,12 @@ void bhv_tumbling_bridge_platform_loop(void) {
         case 3:
             break;
     }
-    if (o->parentObj->oAction == 3) {
+    if (o->parentObj && o->parentObj->oAction == 3) {
         obj_mark_for_deletion(o);
         if (isLLL) { network_send_object(o); }
     }
 
-    if (o->parentObj != NULL && o->parentObj->oIntangibleTimer != -1) {
+    if (o->parentObj && o->parentObj->oIntangibleTimer != -1) {
         load_object_collision_model();
     } else if (gCurrCourseNum != COURSE_LLL) {
         load_object_collision_model();
@@ -94,6 +94,7 @@ void tumbling_bridge_act_1(void) {
     s32 relativePlatformZ;
     s32 relativePlatformY = 0;
     s32 relativeInitialPlatformY = 0;
+    if (!BHV_ARR_CHECK(sTumblingBridgeParams, bridgeID, struct Struct8032F34C)) { return; }
 
     for (i = 0; i < sTumblingBridgeParams[bridgeID].numBridgeSections; i++) {
         relativePlatformX = 0;

src/game/behaviors/tuxie.inc.c

@@ -57,7 +57,7 @@ void tuxies_mother_act_1(void) {
             cur_obj_init_animation_with_sound(3);
             if (!cur_obj_is_mario_on_platform()) {
                 sp2C = (o->oBehParams >> 0x10) & 0xFF;
-                sp28 = (o->prevObj->oBehParams >> 0x10) & 0xFF;
+                sp28 = o->prevObj ? ((o->prevObj->oBehParams >> 0x10) & 0xFF) : 0;
                 if (sp2C == sp28) {
                     dialogID = gBehaviorValues.dialogs.TuxieMotherBabyFoundDialog;
                 } else {
@@ -75,7 +75,7 @@ void tuxies_mother_act_1(void) {
                 cur_obj_init_animation_with_sound(0);
             break;
         case 1:
-            if (o->prevObj->oHeldState == HELD_FREE) {
+            if (o->prevObj && o->prevObj->oHeldState == HELD_FREE) {
                 //! This line is was almost certainly supposed to be something
                 // like o->prevObj->oInteractionSubtype &= ~INT_SUBTYPE_DROP_IMMEDIATELY;
                 // however, this code uses the value of o->oInteractionSubtype
@@ -98,7 +98,7 @@ void tuxies_mother_act_1(void) {
             }
             break;
         case 2:
-            if (o->prevObj->oHeldState == HELD_FREE) {
+            if (o->prevObj && o->prevObj->oHeldState == HELD_FREE) {
                 //! Same bug as above
                 o->prevObj->OBJECT_FIELD_S32(o->oInteractionSubtype) &= ~INT_SUBTYPE_DROP_IMMEDIATELY;
                 obj_set_behavior(o->prevObj, bhvPenguinBaby);

src/game/behaviors/ukiki.inc.c

@@ -516,7 +516,7 @@ void ukiki_free_loop(void) {
     handle_cap_ukiki_reset();
 
     if(!(o->oMoveFlags & OBJ_MOVE_MASK_IN_WATER)) {
-        exec_anim_sound_state(sUkikiSoundStates);
+        exec_anim_sound_state(sUkikiSoundStates, sizeof(sUkikiSoundStates) / sizeof(struct SoundState));
     }
 }
 

src/game/behaviors/ukiki_cage.inc.c

@@ -29,7 +29,7 @@ void bhv_ukiki_cage_star_loop(void) {
             obj_copy_behavior_params(o, o->parentObj);
 
             // When they cage hides itself, spawn particles and the star.
-            if (o->parentObj->oAction == UKIKI_CAGE_ACT_HIDE) {
+            if (o->parentObj && o->parentObj->oAction == UKIKI_CAGE_ACT_HIDE) {
                 o->oAction++;
             }
             break;

src/game/behaviors/unagi.inc.c

@@ -53,9 +53,11 @@ void unagi_act_0(void) {
     s32 distanceToPlayer = player ? dist_between_objects(o, player) : 10000;
     if (distanceToPlayer > 4500.0f && o->oSubAction != 0) {
         o->oAction = 1;
+        if (o->oPathedStartWaypoint) {
             o->oPosX = o->oPathedStartWaypoint->pos[0];
             o->oPosY = o->oPathedStartWaypoint->pos[1];
             o->oPosZ = o->oPathedStartWaypoint->pos[2];
+        }
     } else if (o->oUnagiUnk1AC < 700.0f) {
         o->oSubAction = 1;
     }
@@ -200,7 +202,7 @@ void bhv_unagi_subobject_loop(void) {
     struct Object* player = nearest_player_to_object(o);
     s32 distanceToPlayer = player ? dist_between_objects(o, player) : 10000;
 
-    if (o->parentObj->oUnagiUnk1B2 == 0) {
+    if (!o->parentObj || o->parentObj->oUnagiUnk1B2 == 0) {
         obj_mark_for_deletion(o);
     } else {
         val04 = 300.0f * o->oBehParams2ndByte;

src/game/behaviors/water_bomb.inc.c

@@ -54,12 +54,12 @@ void bhv_water_bomb_spawner_update(void) {
             marioState = &gMarioStates[i];
         }
     }
+    if (!player) { return; }
 
     spawnerRadius = 50 * (u16)(o->oBehParams >> 16) + 200.0f;
 
     // When mario is in range and a water bomb isn't already active
-    if (!o->oWaterBombSpawnerBombActive && latDistToMario < spawnerRadius
+    if (!o->oWaterBombSpawnerBombActive && latDistToMario < spawnerRadius && player->oPosY - o->oPosY < 1000.0f) {
-        && player->oPosY - o->oPosY < 1000.0f) {
         if (o->oWaterBombSpawnerTimeToSpawn != 0) {
             o->oWaterBombSpawnerTimeToSpawn -= 1;
         } else if (sync_object_is_owned_locally(o->oSyncID)) {
@@ -206,7 +206,9 @@ static void water_bomb_act_drop(void) {
  */
 static void water_bomb_act_explode(void) {
     water_bomb_spawn_explode_particles(25, 60, 10);
+    if (o->parentObj) {
         o->parentObj->oWaterBombSpawnerBombActive = FALSE;
+    }
     obj_mark_for_deletion(o);
 }
 
@@ -278,7 +280,7 @@ void bhv_water_bomb_update(void) {
  * Despawn when the parent water bomb does.
  */
 void bhv_water_bomb_shadow_update(void) {
-    if (o->parentObj->oAction == WATER_BOMB_ACT_EXPLODE) {
+    if (!o->parentObj || o->parentObj->oAction == WATER_BOMB_ACT_EXPLODE) {
         obj_mark_for_deletion(o);
     } else {
         // TODO: What is happening here

src/game/behaviors/water_bomb_cannon.inc.c

@@ -3,7 +3,7 @@
 void bhv_bubble_cannon_barrel_loop(void) {
     struct Object *val04;
 
-    if (o->parentObj->oAction == 2) {
+    if (!o->parentObj || o->parentObj->oAction == 2) {
         obj_mark_for_deletion(o);
     } else {
         o->oMoveAngleYaw = o->parentObj->oFaceAngleYaw;

src/game/behaviors/water_pillar.inc.c

@@ -81,6 +81,8 @@ void bhv_water_level_pillar_loop(void) {
         water_level_pillar_drained();
     else
         water_level_pillar_undrained();
+    if (gEnvironmentRegions) {
         gEnvironmentRegions[18] = gEnvironmentLevels[2];
         gEnvironmentRegions[6] = gEnvironmentLevels[0];
     }
+}

src/game/behaviors/water_ring.inc.c

@@ -116,7 +116,9 @@ void water_ring_act_not_collected(void) {
     //! In this case ringSpawner and ringManager are the same object,
     //  because the Jet Stream Ring Spawner is its own parent object.
     struct Object *ringSpawner = o->parentObj;
+    if (!ringSpawner) { return; }
     struct Object *ringManager = ringSpawner->parentObj;
+    if (!ringManager) { return; }
 
     if (o->oTimer >= 226) {
         o->oOpacity -= 2;
@@ -160,7 +162,8 @@ void water_ring_spawner_act_inactive(void) {
     //  from the Manta Ray, which spawns rings but also has a Ring Manager object as its
     //  parent. The Jet Stream Ring Spawner functions as both a spawner and a Ring Manager.
     struct Object *currentObj = o->parentObj;
-    struct Object *waterRing;
+    struct Object *waterRing = NULL;
+    if (!currentObj) { return; }
 
     //! Because the index counter overflows at 10000, it's possible to wait
     //  for about 4 hours and 38 minutes if you miss a ring, and the index will
@@ -217,7 +220,9 @@ void bhv_manta_ray_water_ring_init(void) {
 void manta_water_ring_act_not_collected(void) {
     f32 avgScale = (f32) o->oTimer / 50.0f * 1.3 + 0.1;
     struct Object *ringSpawner = o->parentObj;
+    if (!ringSpawner) { return; }
     struct Object *ringManager = ringSpawner->parentObj;
+    if (!ringManager) { return; }
 
     if (avgScale > 1.3)
         avgScale = 1.3;

src/game/behaviors/wdw_water_level.inc.c

@@ -22,8 +22,9 @@ void bhv_init_changing_water_level_loop(void) {
         }
     }
 
+    if (!gEnvironmentRegions) { return; }
+
     if (gCurrentObject->oAction == 0) {
-        if (gEnvironmentRegions != NULL)
         gCurrentObject->oAction++;
     } else if (gCurrentObject->oTimer < 10)
         *gEnvironmentLevels = gEnvironmentRegions[6];

src/game/behaviors/wiggler.inc.c

@@ -72,6 +72,7 @@ void bhv_wiggler_body_part_update(void) {
     // This should never be higher then 3
     // in normal circumstances.
     if (o->oBehParams2ndByte > 3 || o->oBehParams2ndByte < 0) { return; }
+    if (!parent->oWigglerSegments) { return; }
     
     struct ChainSegment *segment = &parent->oWigglerSegments[o->oBehParams2ndByte];
     
@@ -126,11 +127,13 @@ void bhv_wiggler_body_part_update(void) {
  */
 void wiggler_init_segments(void) {
     struct ChainSegment *segments = mem_pool_alloc(gObjectMemoryPool, 4 * sizeof(struct ChainSegment));
-    if (segments != NULL) {
+
     // Each segment represents the global position and orientation of each
     // object. Segment 0 represents the wiggler's head, and segment i>0
     // represents body part i.
     o->oWigglerSegments = segments;
+
+    if (segments != NULL) {
         for (s32 i = 0; i <= 3; i++) {
             chain_segment_init(segments + i);
 
@@ -171,11 +174,12 @@ void wiggler_init_segments(void) {
  */
 void wiggler_update_segments(void) {
     f32 segmentLength = 35.0f * o->header.gfx.scale[0];
+    if (!o->oWigglerSegments) { return; }
 
     for (s32 i = 1; i <= 3; i++) {
         struct ChainSegment *prevBodyPart = &o->oWigglerSegments[i - 1];
         struct ChainSegment *bodyPart = &o->oWigglerSegments[i];
-
+        if (!prevBodyPart || !bodyPart) { continue; }
         f32 dx = bodyPart->posX - prevBodyPart->posX;
         f32 dy = bodyPart->posY - prevBodyPart->posY;
         f32 dz = bodyPart->posZ - prevBodyPart->posZ;
@@ -235,7 +239,7 @@ static void wiggler_act_walk(void) {
         //  to 4 until after this runs the first time. It indexes out of bounds
         //  and uses the value 113762.3 for one frame on US. This is fixed up
         //  in wiggler_init_segments if AVOID_UB is defined.
-        obj_forward_vel_approach(sWigglerSpeeds[o->oHealth - 1], 1.0f);
+        obj_forward_vel_approach(BHV_ARR(sWigglerSpeeds, o->oHealth - 1, f32), 1.0f);
 
         if (o->oWigglerWalkAwayFromWallTimer != 0) {
             o->oWigglerWalkAwayFromWallTimer -= 1;
@@ -522,11 +526,13 @@ void bhv_wiggler_update(void) {
         }
 
         // Update segment 0 with data from the wiggler object
+        if (o->oWigglerSegments) {
             o->oWigglerSegments[0].posX = o->oPosX;
             o->oWigglerSegments[0].posY = o->oPosY;
             o->oWigglerSegments[0].posZ = o->oPosZ;
             o->oWigglerSegments[0].pitch = o->oFaceAnglePitch;
             o->oWigglerSegments[0].yaw = o->oFaceAngleYaw;
+        }
 
         // Update the rest of the segments to follow segment 0
         wiggler_update_segments();

src/game/camera.c

@@ -3658,24 +3658,28 @@ void stub_camera_3(UNUSED struct Camera *c) {
 }
 
 void vec3f_sub(Vec3f dst, Vec3f src) {
+    if (!dst || !src) { return; }
     dst[0] -= src[0];
     dst[1] -= src[1];
     dst[2] -= src[2];
 }
 
 void object_pos_to_vec3f(Vec3f dst, struct Object *o) {
+    if (!dst || !o) { return; }
     dst[0] = o->oPosX;
     dst[1] = o->oPosY;
     dst[2] = o->oPosZ;
 }
 
 void vec3f_to_object_pos(struct Object *o, Vec3f src) {
+    if (!o || !src) { return; }
     o->oPosX = src[0];
     o->oPosY = src[1];
     o->oPosZ = src[2];
 }
 
 void unused_object_angle_to_vec3s(Vec3s dst, struct Object *o) {
+    if (!dst || !o) { return; }
     dst[0] = o->oMoveAnglePitch;
     dst[1] = o->oMoveAngleYaw;
     dst[2] = o->oMoveAngleRoll;

src/game/ingame_menu.c

@@ -1479,7 +1479,7 @@ void handle_dialog_text_and_pages(s8 colorMode, struct DialogEntry *dialog, s8 l
 
     while (pageState == DIALOG_PAGE_STATE_NONE) {
         change_and_flash_dialog_text_color_lines(colorMode, lineNum);
-        strChar = str[strIdx];
+        strChar = str ? str[strIdx] : DIALOG_CHAR_TERMINATOR;
 
         switch (strChar) {
             case DIALOG_CHAR_TERMINATOR:
@@ -1932,6 +1932,10 @@ void render_dialog_entries(void) {
             break;
     }
 #else
+    if (gDialogID >= DIALOG_COUNT || gDialogID < 0) {
+        gDialogID = -1;
+        return;
+    }
     dialogTable = segmented_to_virtual(seg2_dialog_table);
 #endif
     dialog = segmented_to_virtual(dialogTable[gDialogID]);

src/game/interaction.c

@@ -2239,7 +2239,7 @@ void mario_process_interactions(struct MarioState *m) {
 
                 m->collidedObjInteractTypes &= ~interactType;
 
-                if (!(object->oInteractStatus & INT_STATUS_INTERACTED)) {
+                if (object && !(object->oInteractStatus & INT_STATUS_INTERACTED)) {
                     bool allow = true;
                     smlua_call_event_hooks_interact_params_ret_bool(HOOK_ALLOW_INTERACT, m, object, interactType, &allow);
                     if (allow) {

src/game/level_update.c

@@ -677,6 +677,7 @@ s16 music_changed_through_warp(s16 arg) {
     }
 
     struct ObjectWarpNode *warpNode = area_get_warp_node(arg);
+    if (!warpNode) { return FALSE; }
     s16 levelNum = warpNode->node.destLevel & 0x7F;
 
 #if BUGFIX_KOOPA_RACE_MUSIC

src/game/mario_actions_cutscene.c

@@ -2313,10 +2313,12 @@ static void end_peach_cutscene_summon_jumbo_star(struct MarioState *m) {
         advance_cutscene_step(m);
     }
 
+    if (sEndJumboStarObj) {
         sEndJumboStarObj->oFaceAngleYaw += 0x0400;
         generate_yellow_sparkles(0, 2528, -1800, 250.0f);
         play_sound(SOUND_AIR_PEACH_TWINKLE, sEndJumboStarObj->header.gfx.cameraToObject);
     }
+}
 
 #if defined(VERSION_EU)
     //#define TIMER_FADE_IN_PEACH 201
@@ -2344,7 +2346,7 @@ static void end_peach_cutscene_spawn_peach(struct MarioState *m) {
         play_transition(WARP_TRANSITION_FADE_FROM_COLOR, 192, 255, 255, 255);
     }
     if (m->actionTimer == 40) {
-        obj_mark_for_deletion(sEndJumboStarObj);
+        if (sEndJumboStarObj) { obj_mark_for_deletion(sEndJumboStarObj); }
 
         sEndPeachObj = spawn_object_abs_with_rot(gCurrentObject, 0, MODEL_PEACH, bhvEndPeach, 0, 2428,
                                                  -1300, 0, 0, 0);

src/game/memory.c

@@ -287,6 +287,8 @@ void *alloc_only_pool_alloc(struct AllocOnlyPool *pool, s32 size) {
     }
     if (addr == NULL) {
         LOG_ERROR("Allocate only pool failed to allocate memory of size 0x%X on at pool %p.", size, pool);
+    } else {
+        memset(addr, 0, size);
     }
     return addr;
 }
@@ -374,6 +376,7 @@ void *mem_pool_alloc(struct MemoryPool *pool, u32 size) {
  * Free a block that was allocated using mem_pool_alloc.
  */
 void mem_pool_free(struct MemoryPool *pool, void *addr) {
+    if (!addr) { return; }
     struct MemoryBlock *block = (struct MemoryBlock *) ((u8 *) addr - sizeof(struct MemoryBlock));
     struct MemoryBlock *freeList = pool->freeList.next;
 
@@ -419,6 +422,7 @@ void *alloc_display_list(u32 size) {
     if (gGfxPoolEnd - size >= (u8 *) gDisplayListHead) {
         gGfxPoolEnd -= size;
         ptr = gGfxPoolEnd;
+        memset(ptr, 0, size);
     } else {
         LOG_ERROR("Failed to allocate display list of size 0x%X!", size);
     }

src/game/moving_texture.c

@@ -319,9 +319,11 @@ Gfx *geo_wdw_set_initial_water_level(s32 callContext, UNUSED struct GraphNode *n
         } else {
             wdwWaterHeight = 1024;
         }
+        if (gEnvironmentRegions) {
             for (i = 0; i < *gEnvironmentRegions; i++) {
                 gEnvironmentRegions[i * 6 + 6] = wdwWaterHeight;
             }
+        }
         gWdwWaterLevelSet = TRUE;
     }
     return NULL;

src/game/obj_behaviors_2.c

@@ -178,6 +178,7 @@ void platform_on_track_update_pos_or_spawn_ball(s32 ballIndex, f32 x, f32 y, f32
 
         do {
             prevWaypoint = nextWaypoint;
+            if (!prevWaypoint) { break; }
 
             nextWaypoint += 1;
             if (nextWaypoint->flags == WAYPOINT_FLAGS_END) {

src/game/object_helpers.c

@@ -219,7 +219,7 @@ Gfx *geo_switch_area(s32 callContext, struct GraphNode *node) {
                 if (door == NULL) { continue; }
                 if (door->oInteractType != INTERACT_DOOR) { continue; }
                 if (door->oAction == 0) { continue; }
-                if (gDoorAdjacentRooms[door->oDoorUnkF8][0] != gMarioCurrentRoom && gDoorAdjacentRooms[door->oDoorUnkF8][1] != gMarioCurrentRoom) { continue; }
+                if (door->oDoorUnkF8 < 60 && gDoorAdjacentRooms[door->oDoorUnkF8][0] != gMarioCurrentRoom && gDoorAdjacentRooms[door->oDoorUnkF8][1] != gMarioCurrentRoom) { continue; }
 
                 find_floor(door->oHomeX, door->oHomeY, door->oHomeZ, &sp20);
                 if (!sp20) { continue; }
@@ -755,6 +755,7 @@ void cur_obj_move_using_vel(void) {
 }
 
 void obj_copy_graph_y_offset(struct Object *dst, struct Object *src) {
+    if (!dst || !src) { return; }
     dst->oGraphYOffset = src->oGraphYOffset;
 }
 
@@ -764,12 +765,14 @@ void obj_copy_pos_and_angle(struct Object *dst, struct Object *src) {
 }
 
 void obj_copy_pos(struct Object *dst, struct Object *src) {
+    if (!dst || !src) { return; }
     dst->oPosX = src->oPosX;
     dst->oPosY = src->oPosY;
     dst->oPosZ = src->oPosZ;
 }
 
 void obj_copy_angle(struct Object *dst, struct Object *src) {
+    if (!dst || !src) { return; }
     dst->oMoveAnglePitch = src->oMoveAnglePitch;
     dst->oMoveAngleYaw = src->oMoveAngleYaw;
     dst->oMoveAngleRoll = src->oMoveAngleRoll;
@@ -780,6 +783,7 @@ void obj_copy_angle(struct Object *dst, struct Object *src) {
 }
 
 void obj_set_gfx_pos_from_pos(struct Object *obj) {
+    if (!obj) { return; }
     obj->header.gfx.pos[0] = obj->oPosX;
     obj->header.gfx.pos[1] = obj->oPosY;
     obj->header.gfx.pos[2] = obj->oPosZ;
@@ -1211,15 +1215,15 @@ BAD_RETURN(s16) cur_obj_reverse_animation(void) {
 
 BAD_RETURN(s32) cur_obj_extend_animation_if_at_end(void) {
     s32 sp4 = o->header.gfx.animInfo.animFrame;
-    s32 sp0 = o->header.gfx.animInfo.curAnim->loopEnd - 2;
+    s32 sp0 = o->header.gfx.animInfo.curAnim ? o->header.gfx.animInfo.curAnim->loopEnd - 2 : 0;
 
     if (sp4 == sp0) o->header.gfx.animInfo.animFrame--;
 }
 
 s32 cur_obj_check_if_near_animation_end(void) {
-    u32 animFlags = (s32) o->header.gfx.animInfo.curAnim->flags;
+    u32 animFlags = o->header.gfx.animInfo.curAnim ? (s32) o->header.gfx.animInfo.curAnim->flags : 0;
     s32 animFrame = o->header.gfx.animInfo.animFrame;
-    s32 nearLoopEnd = o->header.gfx.animInfo.curAnim->loopEnd - 2;
+    s32 nearLoopEnd = o->header.gfx.animInfo.curAnim ? o->header.gfx.animInfo.curAnim->loopEnd - 2 : 0;
     s32 isNearEnd = FALSE;
 
     if (animFlags & ANIM_FLAG_NOLOOP && nearLoopEnd + 1 == animFrame) {
@@ -1235,7 +1239,7 @@ s32 cur_obj_check_if_near_animation_end(void) {
 
 s32 cur_obj_check_if_at_animation_end(void) {
     s32 animFrame = o->header.gfx.animInfo.animFrame;
-    s32 lastFrame = o->header.gfx.animInfo.curAnim->loopEnd - 1;
+    s32 lastFrame = o->header.gfx.animInfo.curAnim ? o->header.gfx.animInfo.curAnim->loopEnd - 1 : 0;
 
     if (animFrame == lastFrame) {
         return TRUE;
@@ -1732,6 +1736,7 @@ s32 cur_obj_has_behavior(const BehaviorScript *behavior) {
 }
 
 s32 obj_has_behavior(struct Object *obj, const BehaviorScript *behavior) {
+    if (!obj || !behavior) { return FALSE; }
     behavior = smlua_override_behavior(behavior);
     if (obj->behavior == segmented_to_virtual(behavior)) {
         return TRUE;
@@ -2242,6 +2247,7 @@ void obj_set_throw_matrix_from_transform(struct Object *obj) {
 void obj_build_transform_relative_to_parent(struct Object *obj) {
     if (obj == NULL) { return; }
     struct Object *parent = obj->parentObj;
+    if (!parent) { return; }
 
     obj_build_transform_from_pos_and_angle(obj, O_PARENT_RELATIVE_POS_INDEX, O_FACE_ANGLE_INDEX);
     obj_apply_scale_to_transform(obj);
@@ -2305,6 +2311,8 @@ s32 cur_obj_follow_path(UNUSED s32 unusedArg) {
     startWaypoint = o->oPathedStartWaypoint;
     lastWaypoint = o->oPathedPrevWaypoint;
 
+    if (!startWaypoint) { return PATH_NONE; }
+
     // sanity check waypoints
     if (lastWaypoint == NULL) { lastWaypoint = startWaypoint; }
     struct Waypoint* tmpWaypoint = (lastWaypoint + 1);
@@ -2593,6 +2601,7 @@ s32 cur_obj_progress_direction_table(void) {
     s8 spF;
     s8 *sp8 = o->oToxBoxMovementPattern;
     s32 sp4 = o->oToxBoxMovementStep + 1;
+    if (!sp8) { return 0; }
 
     if (sp8[sp4] != -1) {
         spF = sp8[sp4];
@@ -2701,7 +2710,7 @@ void spawn_base_star_with_no_lvl_exit(void) {
 }
 
 s32 bit_shift_left(s32 a0) {
-    return D_8032F0A4[a0];
+    return BHV_ARR(D_8032F0A4, a0, s16);
 }
 
 s32 cur_obj_mario_far_away(void) {
@@ -3298,3 +3307,14 @@ void cur_obj_set_home_once(void) {
     o->oHomeY = o->oPosY;
     o->oHomeZ = o->oPosZ;
 }
+
+s32 get_trajectory_length(Trajectory* trajectory) {
+    if (!trajectory) { return 0; }
+    s32 count = 0;
+    s16* c = trajectory;
+    while (*c != -1) {
+        count++;
+        c += 4;
+    }
+    return count;
+}

src/game/object_helpers.h

@@ -326,5 +326,6 @@ void cur_obj_spawn_star_at_y_offset(f32 targetX, f32 targetY, f32 targetZ, f32 o
 #endif
 
 void cur_obj_set_home_once(void);
+s32 get_trajectory_length(Trajectory* trajectory);
 
 #endif // OBJECT_HELPERS_H

src/game/object_list_processor.c

@@ -275,6 +275,7 @@ void bhv_mario_update(void) {
 
     // set mario state to the current player
     s32 stateIndex = (gCurrentObject->oBehParams - 1);
+    if (stateIndex > MAX_PLAYERS) { return; }
     gMarioState = &gMarioStates[stateIndex];
 
     // sanity check torsoPos, it isn't updated off-screen otherwise
@@ -465,6 +466,7 @@ void set_object_respawn_info_bits(struct Object *obj, u8 bits) {
     u16 *info16;
     u8 oldRespawnInfoBits = 0;
     u8 newRespawnInfoBits = 0;
+    if (!obj) { return; }
 
     switch (obj->respawnInfoType) {
         case RESPAWN_INFO_TYPE_32:

src/game/spawn_object.c

@@ -109,11 +109,14 @@ struct Object *try_allocate_object(struct ObjectNode *destList, struct ObjectNod
     geo_remove_child(&nextObj->gfx.node);
     geo_add_child(&gObjParentGraphNode, &nextObj->gfx.node);
 
-    ((struct Object *)nextObj)->ctx = 0
+    struct Object* ret = (struct Object *) nextObj;
+    ret->ctx = 0
         | ((u8)CTX_WITHIN(CTX_LEVEL_SCRIPT) << 0)
         | ((u8)CTX_WITHIN(CTX_HOOK)         << 1);
 
-    return (struct Object *) nextObj;
+    ret->header.gfx.sharedChild = NULL;
+
+    return ret;
 }
 
 /**

src/game/spawn_sound.c

@@ -15,8 +15,9 @@
  * of sound states. Used for the stepping sounds of various
  * objects. (King Bobomb, Bowser, King Whomp)
  */
-void exec_anim_sound_state(struct SoundState *soundStates) {
+void exec_anim_sound_state(struct SoundState *soundStates, u16 maxSoundStates) {
     s32 stateIdx = gCurrentObject->oSoundStateID;
+    if (stateIdx >= maxSoundStates) { return; }
 
     switch (soundStates[stateIdx].playSound) {
         // since we have an array of sound states corresponding to

src/game/spawn_sound.h

@@ -19,6 +19,6 @@ struct SoundState
 void cur_obj_play_sound_1(s32 soundMagic);
 void cur_obj_play_sound_2(s32 soundMagic);
 void create_sound_spawner(s32 soundMagic);
-void exec_anim_sound_state(struct SoundState *soundStates);
+void exec_anim_sound_state(struct SoundState *soundStates, u16 maxSoundStates);
 
 #endif // SPAWN_SOUND_H

src/menu/file_select.c

@@ -577,7 +577,7 @@ void render_score_menu_buttons(struct Object *scoreButton) {
             spawn_object_rel_with_rot(scoreButton, MODEL_MAIN_MENU_MARIO_NEW_BUTTON, bhvMenuButton, 711,
                                       311, -100, 0, -0x8000, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_SCORE_FILE_A]->oMenuButtonScale = 0.11111111f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE_FILE_A]) { sMainMenuButtons[MENU_BUTTON_SCORE_FILE_A]->oMenuButtonScale = 0.11111111f; }
     // File B
     if (save_file_exists(SAVE_FILE_B) == TRUE) {
         sMainMenuButtons[MENU_BUTTON_SCORE_FILE_B] =
@@ -588,7 +588,7 @@ void render_score_menu_buttons(struct Object *scoreButton) {
             spawn_object_rel_with_rot(scoreButton, MODEL_MAIN_MENU_MARIO_NEW_BUTTON, bhvMenuButton,
                                       -166, 311, -100, 0, -0x8000, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_SCORE_FILE_B]->oMenuButtonScale = 0.11111111f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE_FILE_B]) { sMainMenuButtons[MENU_BUTTON_SCORE_FILE_B]->oMenuButtonScale = 0.11111111f; }
     // File C
     if (save_file_exists(SAVE_FILE_C) == TRUE) {
         sMainMenuButtons[MENU_BUTTON_SCORE_FILE_C] = spawn_object_rel_with_rot(
@@ -597,7 +597,7 @@ void render_score_menu_buttons(struct Object *scoreButton) {
         sMainMenuButtons[MENU_BUTTON_SCORE_FILE_C] = spawn_object_rel_with_rot(
             scoreButton, MODEL_MAIN_MENU_MARIO_NEW_BUTTON, bhvMenuButton, 711, 0, -100, 0, -0x8000, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_SCORE_FILE_C]->oMenuButtonScale = 0.11111111f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE_FILE_C]) { sMainMenuButtons[MENU_BUTTON_SCORE_FILE_C]->oMenuButtonScale = 0.11111111f; }
     // File D
     if (save_file_exists(SAVE_FILE_D) == TRUE) {
         sMainMenuButtons[MENU_BUTTON_SCORE_FILE_D] =
@@ -607,19 +607,19 @@ void render_score_menu_buttons(struct Object *scoreButton) {
         sMainMenuButtons[MENU_BUTTON_SCORE_FILE_D] = spawn_object_rel_with_rot(
             scoreButton, MODEL_MAIN_MENU_MARIO_NEW_BUTTON, bhvMenuButton, -166, 0, -100, 0, -0x8000, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_SCORE_FILE_D]->oMenuButtonScale = 0.11111111f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE_FILE_D]) { sMainMenuButtons[MENU_BUTTON_SCORE_FILE_D]->oMenuButtonScale = 0.11111111f; }
     // Return to main menu button
     sMainMenuButtons[MENU_BUTTON_SCORE_RETURN] = spawn_object_rel_with_rot(
         scoreButton, MODEL_MAIN_MENU_YELLOW_FILE_BUTTON, bhvMenuButton, 711, -388, -100, 0, -0x8000, 0);
-    sMainMenuButtons[MENU_BUTTON_SCORE_RETURN]->oMenuButtonScale = 0.11111111f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE_RETURN]) { sMainMenuButtons[MENU_BUTTON_SCORE_RETURN]->oMenuButtonScale = 0.11111111f; }
     // Switch to copy menu button
     sMainMenuButtons[MENU_BUTTON_SCORE_COPY_FILE] = spawn_object_rel_with_rot(
         scoreButton, MODEL_MAIN_MENU_BLUE_COPY_BUTTON, bhvMenuButton, 0, -388, -100, 0, -0x8000, 0);
-    sMainMenuButtons[MENU_BUTTON_SCORE_COPY_FILE]->oMenuButtonScale = 0.11111111f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE_COPY_FILE]) { sMainMenuButtons[MENU_BUTTON_SCORE_COPY_FILE]->oMenuButtonScale = 0.11111111f; }
     // Switch to erase menu button
     sMainMenuButtons[MENU_BUTTON_SCORE_ERASE_FILE] = spawn_object_rel_with_rot(
         scoreButton, MODEL_MAIN_MENU_RED_ERASE_BUTTON, bhvMenuButton, -711, -388, -100, 0, -0x8000, 0);
-    sMainMenuButtons[MENU_BUTTON_SCORE_ERASE_FILE]->oMenuButtonScale = 0.11111111f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE_ERASE_FILE]) { sMainMenuButtons[MENU_BUTTON_SCORE_ERASE_FILE]->oMenuButtonScale = 0.11111111f; }
 }
 
 #ifdef VERSION_EU
@@ -1325,7 +1325,7 @@ void bhv_menu_button_manager_init(void) {
             spawn_object_rel_with_rot(gCurrentObject, MODEL_MAIN_MENU_MARIO_NEW_BUTTON_FADE,
                                       bhvMenuButton, -6400, 2800, 0, 0, 0, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_PLAY_FILE_A]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_PLAY_FILE_A]) { sMainMenuButtons[MENU_BUTTON_PLAY_FILE_A]->oMenuButtonScale = 1.0f; }
     // File B
     if (save_file_exists(SAVE_FILE_B) == TRUE) {
         sMainMenuButtons[MENU_BUTTON_PLAY_FILE_B] =
@@ -1336,7 +1336,7 @@ void bhv_menu_button_manager_init(void) {
             spawn_object_rel_with_rot(gCurrentObject, MODEL_MAIN_MENU_MARIO_NEW_BUTTON_FADE,
                                       bhvMenuButton, 1500, 2800, 0, 0, 0, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_PLAY_FILE_B]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_PLAY_FILE_B]) { sMainMenuButtons[MENU_BUTTON_PLAY_FILE_B]->oMenuButtonScale = 1.0f; }
     // File C
     if (save_file_exists(SAVE_FILE_C) == TRUE) {
         sMainMenuButtons[MENU_BUTTON_PLAY_FILE_C] =
@@ -1346,7 +1346,7 @@ void bhv_menu_button_manager_init(void) {
         sMainMenuButtons[MENU_BUTTON_PLAY_FILE_C] = spawn_object_rel_with_rot(
             gCurrentObject, MODEL_MAIN_MENU_MARIO_NEW_BUTTON_FADE, bhvMenuButton, -6400, 0, 0, 0, 0, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_PLAY_FILE_C]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_PLAY_FILE_C]) { sMainMenuButtons[MENU_BUTTON_PLAY_FILE_C]->oMenuButtonScale = 1.0f; }
     // File D
     if (save_file_exists(SAVE_FILE_D) == TRUE) {
         sMainMenuButtons[MENU_BUTTON_PLAY_FILE_D] = spawn_object_rel_with_rot(
@@ -1355,23 +1355,23 @@ void bhv_menu_button_manager_init(void) {
         sMainMenuButtons[MENU_BUTTON_PLAY_FILE_D] = spawn_object_rel_with_rot(
             gCurrentObject, MODEL_MAIN_MENU_MARIO_NEW_BUTTON_FADE, bhvMenuButton, 1500, 0, 0, 0, 0, 0);
     }
-    sMainMenuButtons[MENU_BUTTON_PLAY_FILE_D]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_PLAY_FILE_D]) { sMainMenuButtons[MENU_BUTTON_PLAY_FILE_D]->oMenuButtonScale = 1.0f; }
     // Score menu button
     sMainMenuButtons[MENU_BUTTON_SCORE] = spawn_object_rel_with_rot(
         gCurrentObject, MODEL_MAIN_MENU_GREEN_SCORE_BUTTON, bhvMenuButton, -6400, -3500, 0, 0, 0, 0);
-    sMainMenuButtons[MENU_BUTTON_SCORE]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_SCORE]) { sMainMenuButtons[MENU_BUTTON_SCORE]->oMenuButtonScale = 1.0f; }
     // Copy menu button
     sMainMenuButtons[MENU_BUTTON_COPY] = spawn_object_rel_with_rot(
         gCurrentObject, MODEL_MAIN_MENU_BLUE_COPY_BUTTON, bhvMenuButton, -2134, -3500, 0, 0, 0, 0);
-    sMainMenuButtons[MENU_BUTTON_COPY]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_COPY]) { sMainMenuButtons[MENU_BUTTON_COPY]->oMenuButtonScale = 1.0f; }
     // Erase menu button
     sMainMenuButtons[MENU_BUTTON_ERASE] = spawn_object_rel_with_rot(
         gCurrentObject, MODEL_MAIN_MENU_RED_ERASE_BUTTON, bhvMenuButton, 2134, -3500, 0, 0, 0, 0);
-    sMainMenuButtons[MENU_BUTTON_ERASE]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_ERASE]) { sMainMenuButtons[MENU_BUTTON_ERASE]->oMenuButtonScale = 1.0f; }
     // Sound mode menu button (Option Mode in EU)
     sMainMenuButtons[MENU_BUTTON_SOUND_MODE] = spawn_object_rel_with_rot(
         gCurrentObject, MODEL_MAIN_MENU_PURPLE_SOUND_BUTTON, bhvMenuButton, 6400, -3500, 0, 0, 0, 0);
-    sMainMenuButtons[MENU_BUTTON_SOUND_MODE]->oMenuButtonScale = 1.0f;
+    if (sMainMenuButtons[MENU_BUTTON_SOUND_MODE]) { sMainMenuButtons[MENU_BUTTON_SOUND_MODE]->oMenuButtonScale = 1.0f; }
 
     sTextBaseAlpha = 0;
 }
@@ -1392,7 +1392,7 @@ void check_main_menu_clicked_buttons(void) {
 #endif
         // Sound mode menu is handled separately because the button ID for it
         // is not grouped with the IDs of the other submenus.
-        if (check_clicked_button(sMainMenuButtons[MENU_BUTTON_SOUND_MODE]->oPosX,
+        if (sMainMenuButtons[MENU_BUTTON_SOUND_MODE] && check_clicked_button(sMainMenuButtons[MENU_BUTTON_SOUND_MODE]->oPosX,
                                 sMainMenuButtons[MENU_BUTTON_SOUND_MODE]->oPosY, 200.0f) == TRUE) {
             sMainMenuButtons[MENU_BUTTON_SOUND_MODE]->oMenuButtonState = MENU_BUTTON_STATE_GROWING;
             sSelectedButtonID = MENU_BUTTON_SOUND_MODE;
@@ -1401,6 +1401,7 @@ void check_main_menu_clicked_buttons(void) {
             s8 buttonID;
             // Configure Main Menu button group
             for (buttonID = MENU_BUTTON_MAIN_MIN; buttonID < MENU_BUTTON_MAIN_MAX; buttonID++) {
+                if (!sMainMenuButtons[buttonID]) { continue; }
                 s16 buttonX = sMainMenuButtons[buttonID]->oPosX;
                 s16 buttonY = sMainMenuButtons[buttonID]->oPosY;
 
@@ -1415,7 +1416,9 @@ void check_main_menu_clicked_buttons(void) {
 #ifdef VERSION_EU
         // Open Options Menu if sOpenLangSettings is TRUE (It's TRUE when there's no saves)
         if (sOpenLangSettings == TRUE) {
+            if (sMainMenuButtons[MENU_BUTTON_SOUND_MODE]) {
                 sMainMenuButtons[MENU_BUTTON_SOUND_MODE]->oMenuButtonState = MENU_BUTTON_STATE_GROWING;
+            }
             sSelectedButtonID = MENU_BUTTON_SOUND_MODE;
             sOpenLangSettings = FALSE;
         }

src/menu/star_select.c

@@ -34,20 +34,20 @@
  */
 
 // Star Selector count models printed in the act selector menu.
-static struct Object *sStarSelectorModels[8];
+static struct Object *sStarSelectorModels[8] = { 0 };
 
 // The act the course is loaded as, affects whether some objects spawn.
-s8 sLoadedActNum;
+s8 sLoadedActNum = 0;
 s8 sReceivedLoadedActNum = 0;
 
 // Number of obtained stars, excluding the coin star.
-static u8 sObtainedStars;
+static u8 sObtainedStars = 0;
 
 // Total number of stars that appear in the act selector menu.
-static s8 sVisibleStars;
+static s8 sVisibleStars = 0;
 
 // Act selected when the act menu is first opened.
-static u8 sInitSelectedActNum;
+static u8 sInitSelectedActNum = 0;
 
 // Index value of the act selected in the act menu.
 s8 sSelectedActIndex = 0;
@@ -96,7 +96,7 @@ void bhv_act_selector_star_type_loop(void) {
  * Renders the 100 coin star with an special star selector type.
  */
 void render_100_coin_star(u8 stars) {
-    if (stars & (1 << 6)) {
+    if ((stars & (1 << 6)) && sStarSelectorModels[6]) {
         // If the 100 coin star has been collected, create a new star selector next to the coin score.
         sStarSelectorModels[6] = spawn_object_abs_with_rot(gCurrentObject, 0, MODEL_STAR,
                                                         bhvActSelectorStarType, 370, 24, -300, 0, 0, 0);
@@ -205,6 +205,7 @@ void bhv_act_selector_loop(void) {
 
     // Star selector type handler
     for (i = 0; i < sVisibleStars; i++) {
+        if (!sStarSelectorModels[i]) { continue; }
         if (sSelectedActIndex == i) {
             sStarSelectorModels[i]->oStarSelectorType = STAR_SELECTOR_SELECTED;
         } else {

src/pc/lua/smlua_constants_autogen.c

@@ -4022,8 +4022,8 @@ char gSmluaConstants[] = ""
 "COOP_OBJ_FLAG_NON_SYNC = (1 << 2)\n"
 "COOP_OBJ_FLAG_INITIALIZED = (1 << 3)\n"
 "VERSION_TEXT = 'beta'\n"
-"VERSION_NUMBER = 34\n"
+"VERSION_NUMBER = 35\n"
-"MINOR_VERSION_NUMBER = 1\n"
+"MINOR_VERSION_NUMBER = 0\n"
 "PATCH_VERSION_NUMBER = 0\n"
 "VERSION_REGION = 'JP'\n"
 "VERSION_REGION = 'EU'\n"

src/pc/lua/smlua_functions_autogen.c

@@ -23663,6 +23663,24 @@ int smlua_func_get_object_list_from_behavior(lua_State* L) {
     return 1;
 }
 
+int smlua_func_get_trajectory_length(lua_State* L) {
+    if (L == NULL) { return 0; }
+
+    int top = lua_gettop(L);
+    if (top != 1) {
+        LOG_LUA_LINE("Improper param count for '%s': Expected %u, Received %u", "get_trajectory_length", 1, top);
+        return 0;
+    }
+
+    Trajectory* trajectory = (Trajectory*)smlua_to_cpointer(L, 1, LVT_TRAJECTORY_P);
+    if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 1, "get_trajectory_length"); return 0; }
+
+    extern s32 get_trajectory_length(Trajectory* trajectory);
+    lua_pushinteger(L, get_trajectory_length(trajectory));
+
+    return 1;
+}
+
 int smlua_func_increment_velocity_toward_range(lua_State* L) {
     if (L == NULL) { return 0; }
 
@@ -29058,16 +29076,18 @@ int smlua_func_exec_anim_sound_state(lua_State* L) {
     if (L == NULL) { return 0; }
 
     int top = lua_gettop(L);
-    if (top != 1) {
+    if (top != 2) {
-        LOG_LUA_LINE("Improper param count for '%s': Expected %u, Received %u", "exec_anim_sound_state", 1, top);
+        LOG_LUA_LINE("Improper param count for '%s': Expected %u, Received %u", "exec_anim_sound_state", 2, top);
         return 0;
     }
 
     struct SoundState* soundStates = (struct SoundState*)smlua_to_cobject(L, 1, LOT_SOUNDSTATE);
     if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 1, "exec_anim_sound_state"); return 0; }
+    u16 maxSoundStates = smlua_to_integer(L, 2);
+    if (!gSmLuaConvertSuccess) { LOG_LUA("Failed to convert parameter %u for function '%s'", 2, "exec_anim_sound_state"); return 0; }
 
-    extern void exec_anim_sound_state(struct SoundState *soundStates);
+    extern void exec_anim_sound_state(struct SoundState *soundStates, u16 maxSoundStates);
-    exec_anim_sound_state(soundStates);
+    exec_anim_sound_state(soundStates, maxSoundStates);
 
     return 1;
 }
@@ -30685,6 +30705,7 @@ void smlua_bind_functions_autogen(void) {
     //smlua_bind_function(L, "geo_update_layer_transparency", smlua_func_geo_update_layer_transparency); <--- UNIMPLEMENTED
     //smlua_bind_function(L, "geo_update_projectile_pos_from_parent", smlua_func_geo_update_projectile_pos_from_parent); <--- UNIMPLEMENTED
     smlua_bind_function(L, "get_object_list_from_behavior", smlua_func_get_object_list_from_behavior);
+    smlua_bind_function(L, "get_trajectory_length", smlua_func_get_trajectory_length);
     smlua_bind_function(L, "increment_velocity_toward_range", smlua_func_increment_velocity_toward_range);
     smlua_bind_function(L, "is_item_in_array", smlua_func_is_item_in_array);
     smlua_bind_function(L, "is_mario_moving_fast_or_in_air", smlua_func_is_mario_moving_fast_or_in_air);

src/pc/lua/utils/smlua_model_utils.c

@@ -585,6 +585,11 @@ u16 smlua_model_util_load_with_pool_and_cache_id(enum ModelExtendedId extId, str
         }
     }
 
+    if (pickLoadedId >= MAX_LOADED_GRAPH_NODES) {
+        LOG_ERROR("Could not find slot for extId - %u", extId);
+        return UNLOADED_ID;
+    }
+
     // load
     bool resizePool = false;
     if (pool == NULL) {

src/pc/lua/utils/smlua_obj_utils.c

@@ -404,3 +404,23 @@ void set_whirlpools(f32 x, f32 y, f32 z, s16 strength, s16 area, s32 index) {
     gAreas[area].whirlpools[index]->pos[2] = z;
     gAreas[area].whirlpools[index]->strength = strength;
 }
+
+#ifdef DEVELOPMENT
+void obj_randomize(struct Object* o) {
+    for (int i = 0; i < 80; i++) {
+        if (rand() % 10 < 5) {
+            o->rawData.asU32[i] = rand() % 10;
+        } else {
+            o->rawData.asU32[i] = rand();
+        }
+    }
+    struct Object* objs[] = { NULL, gMarioStates[0].marioObj, o };
+    if (rand()%4 > 0) { o->parentObj = objs[rand()%3]; }
+    if (rand()%4 > 0) { o->prevObj = objs[rand()%3]; }
+    if (rand()%4 > 0) { o->usingObj = objs[rand()%3]; }
+
+    if (rand() % 10 < 5) {
+        o->oAction = rand() % 10;
+    }
+}
+#endif

src/pc/network/packets/packet_area.c

@@ -103,7 +103,7 @@ void network_send_area(struct NetworkPlayer* toNp) {
             // TODO: move find model to a utility file/function
             // find model
             u32 model = 0;
-            for (s32 j = 0; j < 256; j++) {
+            for (s32 j = 0; j < MAX_LOADED_GRAPH_NODES; j++) {
                 if (so->o->header.gfx.sharedChild == gLoadedGraphNodes[j]) {
                     model = j;
                     break;