The aesthetics of the game felt really good; the music fits really well, I like the simple pixel art style. The game resolution itself was a bit too small. you could have removed the black edges around the game. The gameplay was decent: I liked that you have different waves of enemies and enemies with different mechanics. the fact that the blocks gets destroyed by the rats is a really nice feature although it felt a little unbalanced in the beginning (too slow to start up). It would also be great if you introduce more advanced AI into the rats so they don't just stay stuck behind walls a lot of the time because right now you are just going around your perimeter most of the time killing the rats that are stuck. Overall I really enjoyed it.