Soooo much fun! and challenging too! Only thing I would change is let the player advance the puzzle to the next level instead of removing the puzzle automatically. I would like to pause when each puzzle is solved so that I can see how I solved it. What happens now is that you slide the tiles around and before you realize it you have solved it quite by a accident, then the puzzle disappears and you dont get a chance to see how it all flowed together. Please add the ability to let the player advance to the next puzzle on their own and then it will be a perfect game!