The mechanics are actually brilliant, I absolutely love them (my favourites are the black hole and gravity flips)! I love the simplistic and fun nature of this (chaotic) game. Controls feel very smooth, and the visual effects let me feel the speed and momentum, which is super cool! Not to mention, the music is incredible and I had my head bopping the whole way through haha. My only criticism, which I've seen mentioned in the comments below, is that the tutorial is long and hard to follow, so it takes a while to get the hang of.
You've done an amazing job, well done! Best of luck for the future.