Enemy Tilemaps
Standard Instruction = XXXX YYYY
    X = Timer, Y = Pointer to Map
Map = XXXX AA BB CC DD EE
    X = Number of tiles, A = X offset, B = Overflow/Multiplier, C = Y offset, D = Tile graphic, E = Flip/priority

Extended Instruction = XXXX YYYY
    X = Timer, Y = Pointer to Structure
Structure = XXXX AAAA BBBB CCCC DDDD
    X = Number of parts, A = X offset, B = Y offset, C = Pointer to Map, D = Pointer to Hitbox
Map = XXXX AA BB CC DD EE
    X = Number of tiles, A = X offset, B = overflow/multiplier, C = Y offset, D = Tile graphic, E = Flip/priority
Hitbox = XXXX AAAA BBBB CCCC DDDD EEEE FFFF
    X = Number of hitboxes, A = Left border offset, B = Top border offset, C = Right border offset, D = Bottom border offset, E = Pointer to touch AI, F = Pointer to shot AI