I really love the concept of this game. It's a lot of fun, and the random power ups keeps it interesting.
The hitboxes do feel a bit unforgiving to me, but it might be because of the perspective. There were times where I passed "behind" an enemy, but they still do damage.
I also expected the attack beam to hit multiple enemies at first, due to how it passes through them, but I forgot about this pretty quickly.
Great job!