I like the idea you had here, but I had some trouble playing the game. The mouse controls were a little too quick for me to be able to orient myself and properly aim, and I felt the character was a bit too floaty. I also found the enemies spawning too often. I ended up getting stuck in a cycle where I would die and then spawn with about 15 enemies around me each time.
I think with a few of these control and gameplay bugs fixed this could be a really enticing game! Great job on this submission and keep it up!