My only complaint is that it's too similar to Patrick's Parabox (that and the absence of undo button, when you're so deep in the level you don't want to do a reset). I did really enjoy the puzzles, some of them gave me the a-ha feeling. I got through 30 levels quite fast, and I am impressed by the sheer number of puzzles you made. Sound effects work really well for the game. Oh, and I really appreciate I can play it on the phone quite intuitively!