User summary Terra I is the Earth's main source of energy-producing "Zenbar Crystals". A computer system controls Terra I, using a robot-driven defense system. The computer system is malfunctioning and has decided to give the "Zenbar Crystals" to space pirates. Your mission is to fly the F-711 Starwarrior through space, destroying space pirates on the way, fly through meteor storms, and defeat the robot-driven defense system so you can get to the malfunctioning computer and set things right.