Really simple concept, and just fun puzzle game :D I think it would have really benefitted with an accessible pause or reset hot key, so that when you get stuck, or know that you can't win the level now that you fallen into the pit (ex. level 6?), or know you didnt do as well as you would have done. I love the puzzles and each level really was able to be paced well and introduce mechanics very well, making it really fun. Good job!