Fantastic little puzzler game. There's an interesting mechanic that differentiates it from other puzzle games, the puzzles are simple enough to be fairly easy, but challenging enough to be entertaining. It's nice and bite sized, only took 20 - 30 minutes to complete the game. Sprite design is fantastic, animations are speedy so as to keep the game going, but not jerky or too fast. I would like to have some credits or something at the beginning or end saying what it's for and how long it took to make, that's always cool to see, but it doesn't make the gaming experience any less enjoyable.
Overall: Great gameplay, enjoyable puzzles, interesting and novel game mechanic