I love these physics based puzzles and could play them all day. This game is great, but for some reason you can’t buy it and the ads are relentless. Not sure why you’d create a game, then make it so annoying with ads that players are pushed away. Why do ads actually interrupt game play? Why are hints provided by video, but the video won’t play? Why does a puzzle have three stars, even though you haven’t passed it yet? Why can I solve a puzzle quickly, but it only shows one star? But the ads, and ads, and ads, .................