I feel like you're very close to release, and I literally don't have anything negative to say. Everything is very clear and readable, patterns are very fun, 2 types of player attacks are very much appreciated. Graphics are absolutely top notch, insane level of quality.
Bite-sized little arenas are very much appreciated, love the gentle increase in difficulty. It's such a pleasant increase in difficulty.
Definitely need stick support for the gamepad. I did beat it with the d-pad, but it wasn't very comfortable.
Wishlisted. Will unironically buy it when you release - it's right up my alley.