# Atari 2600 (TIA) help me! I can't even get this character in where I want! I've spent hours debugging the issue, counting every possible cycle and I still cannot get it right! only 2 channels and 31 frequencies?! Furnace isn't complete without this one... # effects - `10xx` select shape. `xx` may be one of: - 0: nothing - 1: buzzy - 2: low buzzy - 3: flangy - 4: square - 5: square - 6: pure buzzy - 7: reedy - 8: noise - 9: reedy - 10: pure buzzy - 11: nothing - 12: low square - 13: low square - 14: low pure buzzy - 15: low reedy