DESCRIPTION

You are a fighter pilot for the Defense Federation and must defend your home planet against your enemies: the Galaxians. Similar to Space Invaders, you control a ship armed with an unlimited supply of missiles. By moving from side to side across the bottom of the screen, you must fire your missiles to defend yourself.

Unlike Space Invaders, however, these marauding aliens will leave their ranks and fly down at you in an attack pattern in hopes of destroying your ship. Any descending ships not destroyed will return to the original formation. The Apple II version has three different types of aliens: Red Aliens, Green Aliens and Galaxian Flagships. Shooting the aliens while they are swooping down at you will earn you more points, while clearing the screen of attacking Galaxians will bring on subsequent waves of more aggressive aliens. ~ Chris Cavanaugh, All Game Guide