The ads make the game an unbearable experience. After purchasing the game, all of the customization options still require you to watch ads. After clearing the world, the game just spins back around and does it from the start all over again. If you don't watch the ads, you don't make enough money to consistently progress. If I spent $10 on the game, I shouldn't have to watch another ad. The enemy units also scale to where you are to push you to watch ads. Why? I do not reccomend