I like the art style. The game gets pretty intense! Good job! I found myself alternating between destroying enemies to clear an area and waiting in a safe space to press a bunch of keys to stay alive. Repeat until a "clear all enemies" powerup shows up, then grab that. Pretty fun! If you want to balance it some maybe have the powerups go away after a while? Not sure if they do but it seemed to me like they just stayed there indefinitely for you to pick up eventually.