ooh, that sounds chaotic lol
i can’t really think of any game-specific patch other than the brick one, that’s the main one i think. visually there’s like the different SMW Luigis (but idk what you plan on doing with luigi at all in general) that people like, and SMB3 Mario and Luigi’s naked hands (hacked to have gloves like in Mario Advance 4)
also… maybe… that’s a bit silly, but there is a patch that basically unifies all games’ audio engines into the same one (AddMusicK used in SMW romhacks) and allows you to change music per-level… but that’s probably too much lol