I've spent so much time on this game XD. Honestly, it feels like a game I could buy on Steam. I have two small criticisms: first, in the opening round, it's almost impossible not to lose half your health because you're really underpowered compared to the enemies. And please, make the turrets stop spinning while you're upgrading them cause I used an ice block only build, and I’d each round spend a good minute just trying to click the upgrade button while it was spinning super fast. Aside from that, the game is absolutely perfect.