This game is fun; however, the higher you get in levels, the harder it is to get energy points. When you reach level 12, the game starts taking your energy points and putting them in a piggy bank that you must pay for to use. Because this game increasingly tries to force you to pay actual cash, I've decided to delete this game. I must remind users that the ads you keep seeing generates cash. So you watching an ad is the same as you paying.