To address all of the above, this version is the *exact* same as the original Sonic 1 (and thus can be used to submit stats if you care to). Tests over on Sonic Retro have found that it's it's not a port, but rather a Sonic 1 ROM being played in a custom emulator -- you can even take the ROM file and play it in any other emulator . From what I hear, though, there's only one jump button (probably A), so debug and slow-motion cheats probably won't be possible.