Golden Silver is a robot powered by the gems that is used to suck planets dry of all their resources. His body is completely invulnerable, requiring Red and Blue to get creative and the Main antagonist from Gunstar Heroes, Gunstar Super Heroes and Guardian Heroes.
The world was nearing its end. An evil organization created the ultimate weapon, Golden Silver, the God of Ruin, to destroy countless cities on Earth from the moon. The Gunstars (Red, Blue, Green, and Yellow) seeing the Earth turn into a living hell before them and fueled by anger, had a showdown with the powerful Golden Silver. At length, after an arduous battle, they defeated the evil God of Ruin. To make sure he was never resurrected, they sealed his body on the moon and took the 4 gems that powered him, and sealed them away in separate places on Earth. The Gunstars, having been pushed to their limits, prayed for a new civilization to arrive, and they began their long sleep. All that is, except for one...
Time passed, and a new civilization was built on Earth. A legend was spread across the land. "Revive the God that sleeps on the moon, and he will guide the most righteous people to Utopia."
Grey, the commander of the dictatorship calling themselves "Empire", believed in this legend and attempted to carry it out. So he sent people to the moon in a battleship called the "Ark", in order to mine for the 4 gems that would call the God forth. It was then that the leader of the underground mining excursion, Dr Brown, uncovered some capsules, in which the Gunstars were having their long sleep. Once they awakened, they learned of the Empire's plan to revive Golden Silver. Their companion, Green, whom they had remembered being with them until the very last moment, had lost his previous memories and was assisting the Empire in the revival of the God of Ruin.
"We won't let such a tragedy happen again! We'll get back the gems and put a stop to the revival of Golden Silver!" Once Dr. Brown heard the Gunstars' words, he decided to betray the Empire and promised to help the Gunstars in their battle.