I really like both the art style and the music. As others have pointed out, the camera feels kinda weird, I found myself having to stop waiting for the camera to catch up sometimes.
Also, it isn't a big deal, but when moving diagonal up (either left or right) the character is looking down haha
It's quite entertaining, although kinda short. Maybe you could add some different types of divers that were more aggro or something, to add to the difficulty as well.