Good game concept and I played it a long time ago on my old phone. I got a new phone and I decided to download this game because I remember it being fun and kind of hard sometimes and I like a challenge. To my surprise you have to pay 2$ to remove ads and you get ads pretty much every 4 or 5 minutes I don't know if it's different for other people but it kind of ruined the game just having to wait 30 seconds to play again. If it had ads every 10 or 15 minutes this wouldn't bother me. 3 stars.