| Astro Battle is the Bally rendition of the arcade classic Space Invaders played at four levels of difficulty, with the higher skill levels featuring faster aliens dropping more bombs. Each wave pits you against thirty-two animated aliens (four rows of eight) moving from one side of the screen to the other, descending slightly each time they reach the edge of the screen. Four shields help protect you from their bombs. Every so often, a spaceship moves across the top of the screen. Blast it to score some extra points. Your current score and number of bases remaining are displayed at the top of the screen. You begin with three bases and are awarded an extra base after scoring 1000 points. No additional bases are awarded after that point. The game ends if the aliens land, all your bases are destroyed, or you destroy all six waves of aliens. Astro Battle was originally released under the name Space Invaders. |
