Pretty fun and creative. I loved the shining mechanic and appreciate the fact that it becomes easier if you suck.
I think this game needed a tutorial or simple level to teach you how movement works. The mechanics are kinda opaque, I didn't realize you could dash upwards at the start and it wasn't clear what level of shine I needed to be to defeat enemies. Sometimes I need 2, sometimes 3, it's not really clear to me why I sometimes bounce off enemies instead of go through them. Once you get the hang of it, it's pretty good though!