I loved to play this games years back and was happy to find out that it was still around. Still a good game, but you have to watch an ad to open new levels, that isn’t a problem. The problem is that after the ad ends, the game will close. Once I open the app again, I still have to watch an ad to open a new level. I don’t know if this a trick to get more money from the ads or just a bug, but other than that is a good game.