Neat game! I thought the puzzles were cool and the menus were pretty funny. One thing I'd change is making the guy jump/slide better. I found I kind of had to running jump to get up the steps in Level 3, but this didn't seem to be part of the puzzle, just some difficult movement once I'd figured the puzzle out. But all in all very cool concept and I really like the way you were able to switch between 2D and 3D!