This is really a good game but every time I finish a game or two the ads just keep popping out! And then after the ad, a promotion for buying premium things shows up after! My phone already chrashed for about 5 times because they instantly direct me to the ads. And then to the "ad rewards" thingy. You know when you need to watch an ad to get extra rewards? It a ONE TIME thing! If the ad gets a single problem for even a single second, the rewards won't show up and the extra rewards will be gone.