If you want to combine the fun of watching 568 daily ads with mind numbingly slow progress this is the game for you. Pay pay pay and pay. Cleared a room 5 minutes ago? Don't worry, there'll still be tons of projectiles floating around in a manner to eek health away from you in case you want to pay to keep playing. I guess if you don't like the ads you can pay to not watch them. So long as you pay and keep paying. And remember, they never have enough money, so be sure to pay. And pay again.