Great gameplay, but the most obvious thing the developers care about is money. Watching an ad for only 1 gem? Really? And the fact that you get an ad everytime you finish up a battle is just ridiculous. This game has alot of potential for a mobile game, but the problem is the ads. And most good weapons in this game, requires gems (of course). I wouldn't recommend downloading this game unless if you're willing to buy gens or wait about 10-20 days for them.