BiggestLeaf
1991
1992
1998
2003
2001
Honestly mad underappreciated game when played on modern hardware. I recommend emulating this and making save states right next to each each special spring for quick resets if you want the best experience. I get how those special stages would be frustrating when played on original hardware, but with an actual working backlit screen, they're really not that bad. The multiple playable characters feel the most fleshed out it ever has in the series, and the game is just fun to play. Gonna put a target on my back and say that I genuinely enjoy this more than the first two genesis games. A worthy successor to Sonic 3K.
2002
2004
2005
2007
I got pretty far into this game, but never made it past the submarine level. I really respect the attempt to deliver a more fleshed out experience, truly I do, but instead all the additional content feels more like its getting in the way and tampering with the perfect simplicity of the original. Also, no Hideki Naganuma is an entire star removed on its own. It can't be understated how much his music carries the first game.