I downloaded the windows build because unfortunately the webgl version doesn't work. In my opinion, the game lacks meta progress. Because the game quickly becomes repetitive. I need some kind of reward system to keep playing the game (maybe upgrades or something else?). In the later course of the game, the enemies also become too fast to kill them all. A bit more player feedback would have made killing enemies even more fun, such as sound effects or particle systems. However, the controls felt very good. All in all I think this is a solid game. Good job.