Don't spend the money! The app is riddled with ads...pay the money for the triple cannon (which is also supposed to remove ads) and you get the cannon, but the ads stay. Pay the $3.50 to remove ads...they stay. Look for a place to complain or engage with help/support because you just spent $13.50 on the game and the ads are still there...good luck. This is the biggest scam in mobile gaming. Uninstall and save your money/frustration.