Hey, this update's pretty neat! Though I do want to report some errors/annoyances that should be looked into:
Special Stages are way too hard, especially the first few - there's no rhyme or predictability with the rings, which causes rows upon rows of rings to frequently be missed - they also appear way too fast, giving you hardly any time to react and move accordingly
Not being able to backtrack before Green Grove's boss is a major annoyance, since the boss is actually pretty difficult to fight, and having to go with only three rings is just insufficient.
If you get a Game Over or if the game happens to reset/crash during Green Grove Zone Act 2, even though it shows your currently collected Emerald Count (For example, four emeralds), your Emerald progress is erased and you're sent back to Special Stage 1, forcing you to do it all over again
The Super Peelout is underpowered and is actually weaker than the spindash, it also takes much longer to charge up since you can't release it at any time - I say this should be changed so you can use it as a faster (but more vulnerable) alternative to the Spindash