This is really fun! I am a big fan of bullet hells so this is a no brainer for me. Love that circular path though it's really quite unique and such a change of pace. The music, graphic, UI and upgrades are very polished. The game is super smooth too! Well done!
I do need to admit that I died to the 7th boss quite a few times, and feels like the satellite healing the boss is quite unfair, and I don't think you can get enough DPM to even out pace that thing. (Sure you can destroy the satellite, but then they can just spawn more.
Anyway, I like this game very much! Keep up the good work!