As usual, you have to earn way too many coins and whatever else it is, per level, to go to the next room or buy the next item, etc. Entirely way too many ads, again! The price of everything goes up, while what you earn does not. In essence, I found it boring shortly after I downloaded it too. And just because levels increase doesn't mean that the difficulty has to increase to the point you can barely win the level, if you do, without having to replay it two or three times, some times more.