I have seen this sort of logic puzzle before, but the hexagonal layout gives it a new twist. I also like the incandescent electric look. It is a little too easy for fat fingers to rotate adjacent pieces unintentionally. Because of the logic involved, there are always some pieces that can only "fit" in one possible direction; thus, having some kind of "locking" feature to prevent accidental rotation of pieces would go a long way in reducing frustration. The zoom function is not as intuitive as it could be. The pinch gesture leads one to expect a fully controlled zoom-in and zoom-out, when really it just toggles between two fixed zoom levels and re-centers the view. It took me a while to figure out why I couldn't control the zoom more precisely. I have yet to complete a level and be awarded more than one out of three stars—even at the lowest skill setting with a finishing time of 29 seconds. The bar seems unrealistically high.