: You can use the MAME debugger ( -debug ) to find the memory address that stores the "Next Piece" ID and manually freeze it to the value of the long piece. 2. ROM Hacking (Assembly)
: Use a tool like Tile Layer Pro to open the ROM and find the graphics (sprites) for the I-piece. You can redraw it, though its "hitbox" is defined by the code, not the art. Tetris Rom Mame
If you are looking to manipulate the game to give you more long pieces or change their behavior, here are the primary methods: 1. MAME Cheat Engine : You can use the MAME debugger (
Modifying or "developing" a specific piece like the "long piece" (I-piece) in a Tetris ROM for MAME generally requires or using cheat codes , as the game's logic is hardcoded into the original binary. You can redraw it, though its "hitbox" is
To permanently change the game code, you must modify the ROM's assembly. Most classic arcade Tetris versions (e.g., Sega System 16 ) use or 68000 processors.
If "developing" means changing the actual look or dimensions of the long piece: