I love the concept and the game's art style! The controls also feel pretty nice but since there's no limit on how many times you can throw yourself in the air, you can easily fly over everything and beat the level in a couple of seconds. Also, it is a bit weird that you can still move around and even die after you beat the level.
Overall it's a great game for the 8 hours you made it in and it'd be cool to see more levels for it!