I really like the art of this game, and the idea isn't bad either. If I had some suggestions for improvements, I'd recommend looking into some more smooth camera movement- it can feel a bit jerky right not because the camera hard cuts whenever you get off the edge of the screen. I'd also try bugfixing the code that rewinds your character when you get hit- there was a point at which I got hit by an enemy and got rewinded into and through a wall, at which point the level became impossible to beat. Still though, I like the art, and especially for a jam game, this isn't bad at all. Nice work.