I really like the game design aspects of a roguelike where you die and come back stronger and that game type has always been fun, and this game hit those 2 concepts pretty well! The graphics and mechanics remind me of what I would make back in my Scratch days! The music and sfx were rather relaxing and I zoned out to wave 14. As for the theme, being honest I don't think it fits very well but that might just be me. For game balance I think it's pretty good, other than the Shotgun being better than the more expensive Piercer and damage upgrades not really impacting the game (purple and cyan enemies take one less hit to kill between no upgrades and max upgrades and none of the other enemies take any fewer hits to kill). The graphics are very simple pixel and I like that someimes, though I feel like anti-aliasing was causing it to blur a little which is a pixel's worse nightmare. If I could change just a few things it would be to add a boss at the end of every stage with the Piercer doing extra damage to bosses and make enemies have more health but the damage upgrade has more increase so that each upgrade has a real impact on gameplay.