Love it! Main mechanic was quite enjoyable, graphics look nice, although lighting seemed a bit weird at first. Powerups added depth to the game and were satisfying in general, the only thing is that I wasn't sure when I was getting each powerup. (I assume they dropped from enemies and I collected them without noticing). The boss was awesome addition, pretty rare quality for a jam game. Only thing I'd suggest is to experiment with abilities being activatable so that you can plan ahead, but I did enjoy having explosive powerup save me in a clutch situation, added some drama to the game.