Rock solid satisfying combat !
I had a blast slashing through the enemies, and when you level up to gain the shield ability combined with the dash it's so fun to try and block,dodge attack to mow down the tougher enemies :D
The evolution system itself is really nice too, i like how you upgrade the stas you want and you end up with a surprise evolution, though i gotta say i don't know what determines it exactly, but i sure wasn't expecting the base slime to evolve into Garlic man :p
The sprites look really good as well, i dig the little expressions when you attack or dash it really adds more life to it all !
Overall tons of fun, and congrats you made a fun sewer level in a video game ! Not a small feat XD