It's similar to the game I made in my last game jam. I really like this idea of rotating movement in platform games and I know for my own experience, it isn't easy to do! Good job!
I think the lack of sound really didn't help the overall feeling of the game. I think sound is something as important as the visual aspect of a game, but usually is left for the last moments of development. An accelerating sound could be very useful to the understanding of the game mechanic.
The landing is something that needs more polish, I got stuck on the ground a few times and had to reset the stage.