Compared to the original, this actually do feel better to play for the most part. One thing I'd suggest maybe is having the rings maybe pull towards Sonic when he moves by them, like in Sonic Utopia. Also maybe have the camera pan towards where Sonic is facing when he's moving. Overall though I think this is very well done, and I hope to see the rest of the game ported in the future. I love how you made Sonic just slowly sink into the sand instead of outright falling through. And I don't know if this is just my imagination, but he feels a little faster as well. Again, I really hope you're still porting the rest of the game.