I really enjoyed this game, and especially liked it's aesthetics.
I think the mechanics of this game are super important to understand, and I just had to guess at them for a while. the controls are right on the screen which is nice, but an in-game tutorial about moving, optimizing, extra exp for the most rats, upgrades, when damage happens, do you get extra damage etc.
I'm not exactly feeling the fast-paced-ness with the current turn based system. especially when sometimes I like my current position, and don't want to move, and just sit waiting.
I like the choice of music, and i think if you were forced to move along with the beat of the music, it would be much more frantic/exciting.
I'm not sure if the sound effects match the music and the rest of the game.