Pretty nice. I love how the graphics look, even though they seem to have been made very quickly. Good job. I like how well implemented the mechanic was, but it sometimes felt a bit weird to be hit by an enemy while rewinding.

Overall, I enjoyed it. Good job!

I liked the dungeon exploration feel, so good work on that. If I could adjust something, it would be that some UI images (like the gold image) is really blurry compared to the other images. Also, I suggest making the instructions show button keys corresponding to the player input device; right now it assumes the player is using a Gamepad.