GJ Powerball - Version 1.0 This is a bat and ball game with a difference. The demo has four levels for you to enjoy. Includes an install and uninstall and a high score table. The full game boasts much more. There are monsters to kill, a space invader type level, double bats, killer icons and a whole lot more. You finish the last level to the sound of the 1812 Overture. A must for all bat and ball gamers. The full game also includes passwords to take you to later levels.