This game made me realize how much fun it was to play pong again. Oh, and the Gravity Mode seems the same as Pong: Survival Battle when the Gravity Pong Power is active, in Anti Idle: The Game. Similar Coding perhaps? Anyway, 5/5.
An idea for Tank Coins: One Coin is earned for a "Decisive" Bonus earned, and Two more for the "Domination Bonus", making a total of three. Coins can still be bought, however, you get twice as much. To counteract this, the price of everything EXCEPT DELUXE, is doubled. Deluxe should be directly bought with Paypal or Kreds. + is you agree.