Very creative! I remember doing this kind of paper computer games as a child :D Since there was both a puzzle and a platformer element, it felt frustating when you had cracked the puzzle part but had to rerun the same challenge over and over because of the need for perfect platformer performance. For example the first part of level 3. I think that checkpoints after major challenges would have made the game more enjoyable. But it is a really good concept! :)