A very nice game two play. The platforming is nice, the puzzles are puzzling and the last level's number is great.
My only complaint is that the game doesn't lock your movement fast enough when you switch from the puzzle to the platforming, so sometimes when you are in the air and pressing right to move your character, instead the puzzle goes to the right and you have to restart. Other than that (and a couple of bugs), the game's great.
Also there is a typo in the last level, but shhh.