After having played ~30-40 games where the theme was realized by randomly switching controls I cannot have fun with this concept anymore.
That being said the game idea and design is really neat and deserves more attention. With a catchy non-annoying background music, the overall result is fine. I can imagine that you can make a decent puzzle game out of it. 3D was a bonus.
When restarting a level you should have nullified the movement vectors and forces on the player. Now if you are fast enough when falling down you will have to restart a couple of times until the player doesn't move anymore.
I really wish they had chosen a different theme.