Visuals are very nice. Controls feel polished. Music is fitting. Great game overall.
Maybe, it would be cool if you could jump while in air. Especially if that ability was somehow combined with some other mechanic.
Also, it would be nice if the power slider (I'm not sure what is the proper name for it) was going back and forth faster and faster instead of just going in one direction. I hope you get what I'm saying.
On 3rd level it reminded me of HamsterBall for some reason (take that as a compliment) :D
If you're interested, check out my game: https://itch.io/jam/gmtk-2019/rate/461829