it's just very.... erm... different. Like there's a lot of emphasis on the dynamic switching of characters. Like you are confronted with situations where you need knuckles to break a container.... then use tails to fly up and on a platform right after. There also seems to be multiple ways to get around some of the obstacles. I can't seem to figure out how to get knuckles to climb (if he still can), but I haven't really played around with it all that much. One thing I will say is the second level is flipping hard lmao (and the first level isn't hard). Oh and enemies have like hit points now, and different characters do different amounts of damage (knuckles hits really hard 😀 ). One final thing I've noticed is that the graphics seemed to be really nice. Like it's a sonic game, so they're not going for realism, but it's just little things, like how the wind rips through hair, and how right near the end of the stage, you can go to this cliff and look over the entire stage... and actually see really far. Oh... and it seems that when you get hit the max number of rings you can drop is 32 (got hit when I had 202 of them lol).