I only made it to wave 12, lol, but fun game nevertheless! it's so satisfying to just avoid all the rats' projectiles and just sweep through a big clump of them. The music and sound effects (don't forget the particles) really made the game feel fun and juicy to play. It just made me feel great in general :D.
(I kinda feel sorry for the guy just getting dragged around like crazy by his sentient sword!)