Very slick UI, nice music, cool mechanics.
I will say the bosses not generating ecstasy was a bummer so that I couldn't use any skills on those. Also, the bosses were really tough to track while dodging; idk what other bullet hells do for this, but I'd lose track of where the boss is, trying to keep away from the bullets. One other thing was the chain reaction part; it wasn't core to the game. You could blow up those dudes if they were there, but they were just a little bit. Maybe I missed more chain reaction elements.
But I had fun, and it was very nicely polished! Good work!