Fun game. I noticed that there is no player health so I just upgraded damage and got the gatling gun and everything got obliterated, fun stuff. I think the enemies need some sort of death animation because right now it seems like they just glitch out of existence, I also noticed that you can purchase the damage upgrade with only 4 points and it puts you on -1 points, but that isn't a serious issue. The game felt fun to play and I think with a few additions it has good potential. good work