Spoiler: Lock-on tech (Not a tutorial but a PoC S2 Lockon disasm from a few years ago. Unfortunately, it's meant for Sonic 2.) I could look into adding Socket as a playable character feature (and IIRC, the Socket tiles are stored in the GF64's Socket disasm uncompressed, so extracting them should be cake). Modifying the Socket palette so that objects relying upon pal #0 don't look tuity-fruity might be a little bit hard though. Pressing the "A" button on the Title Screen could toggle characters. ========= I worked on Future Zone a few weeks ago. Only FZ3 is not done, and I need to eventually port over the S3K reserve gravity gimmick (which is being a big pain) to get FZ2 functional and then begin working on FZ3's layout.