From game pack (compilation) The year 1997 witnessed an unprovoked attack on Earth by a people unkniown, out primitice 'Star Wars' defences were quickly overwhelmed and the Earth's population enslaved. The survival of the human race rested in the hands of a research team hidden in the subrerranial moon base. After extensive experimentation, they priduced a rance of fighter craft called Pulse Fighters. They bacame known as the Gunstar Fleet; their mission - the destruction of the alien forces and liberation of the Earth