So many ads, not zen at all. It's actually quite ridiculous. The game itself is fun however after every level there's an ad and even if you watch the ad to get extra coins there's another ad after that. Sometimes I even get ads that I cannot back out of they just play and when I hit the back button it just takes me to the Play store. The only way to get out of it is to close the game and open it again however I lose my coins earned. I was going to buy the ad free version but $6 is too expensive