I tryed to rotate the world at the first without thinking about the controls and then I found the space to jump ^^'. It woulmd be nice to have the controls wrote somewhere (and having top arrow working as jump!)
I played it until level 4 where I really don't know what I can do with 3 rotations :(. Maybe I didn't understand something :x.
Didn't have any problem with the game outside of that, it's a nice simple game where you have to rotate the elements of the world to pass and jump over them. Perfectly in the theme without trying to make me puke with too much rotation ^^.