I love this!
Died a few times early on but I'm familiar with bullet hell games and won stage 5 after a few minutes.
Gameplay is superb. The music fits too. Compared with other games in this jam, this is very well polished. I really can't find much to fault. If anything, I wonder if you could introduce more variety in the enemies because there are only two types, add more levels (maybe 30 levels), ramp up the difficulty slower and don't end the game instantly when someone gets caught but maybe reset them to the start of that level (or make them play 5 levels then give them a checkpoint?).
These are just ideas though and the game is great as-is, absolutely solid.