Half of Chaotix's detractors just want it to be Sonic 3 with different characters, which given virtually all the levels are built with the combi system in mind, means you'd have to redesign every stage... and probably create new art so it's not just endless quarter pipes... and it still probably wouldn't be as good as Sonic 3. The other half want "more" Chaotix, i.e. use the combi rings more intelligently and give some of these characters a reason to exist. Which is fair, though I'm not sure how you'd achieve that without again, redesigning every stage. I'm drawing blanks on how you'd ever incorporate Charmy Bee in a sensible way - I can only imagine there are clues in concept art and developer documentation, of which we have very little. Vast chunks of this game can be (and have repeatedly been) ignored. Every Techno Tower basement, every Amazing Arena clock room, big chunks of Speed Slider that you run past - the best version of Chaotix I can think of would "do" something with all this noise, but I'll be damned if I know what that plan looks like. I would guess a slower paced game with more puzzle elements, but I'm not sure that's what people want from Sonic (or Knuckles). I'd say character-specific routes, but your partner has to be able to navigate the stage, and again, Charmy could break everything. I would probably axe some of the levels in favour of a new "attraction", and Marina Madness really ought to have water. But equally, I'm not sure if the 32X could cope with that. It's a very weird game.