Very nice! It was shorter than I expected. I like the concept! I do agree with some comments that some of the background could be a different color, but everything that was important was noticeable (the player, platforms, and the lasers) so I have no real gripes. The player controller was smooth, which is also important being a platformer, and the puzzle aspect is awesome!
If you decide to expand on this game, I would be one to play more!