Great, fun game, played android version and had a lot of fun. Couldn't get secret ending, but a friend who is better at wall jump than me and had more patience did it.
it would be nice to have a bit of slower progression, the round wall jump is introduced is a bit hard, you either need to be pixel perfect or do to wall jumps.
otherwise awesome game, i would even dare to say it has commercial potential, its like a mix between Stanley's parable and mirrors edge.