I like the art on this one a lot, it's pretty simple but charming at the same time I think. You should consider rebinding the keys it would make this play a lot better, or even allowing it to be played with the controller. I found myself way too many times trying to attack but pressing space by mistake . The music is pretty cool but it is repetitive so it gets annoying pretty fast. I think that fixing those things and maybe adding some bosses and a story would make a pretty cool game, good job!