Vertical Force

The game takes place in "Space Era 210." The giant computer that takes care of a human colony planet named Odin suddenly malfunctions and decides to send an army of drone starfighters to destroy Earth. These drones emit a signal that renders all Earth starfighters useless. An archaeology team finds an ancient starfighter on the planet Ragnarok that is fortuitously impervious to the drones' signal. It is up to the player to command this starship and destroy all the alien drones.