Amazing work, very good job on the game, it was very polished overall and very fun to play.
The controls and platforming were a bit weird at first, but once I got the hang of it, and specially after the upgrades, it felt very fluid and fun to spin and jump around. I encountered an issue with the character's sprite. When you unlock the powerup to walk on walls, if you walk on the ceiling, your sprite gets inverted, so when you get back on the ground, your sprite is flipped to the wrong side, I fixed this by walking on the ceiling again.
I got stuck while spinning very fast and jumping when I got inside a hole in the wall. My character got stuck in a falling (and rolling) animation. Thankfully I was close to the checkpoint so I just reset to the nearest checkpoint.
The music was also really bugged, like it was lagging or something, but on the whole you game was pretty good to play through, and the art was very nice and the use of the palette gave it a very nice aesthetic. Congrats!