G.O.D. is a brain like lifeform that acts as the main atagonist in Cyberbots: Fullmetal Madness. It was originally created to destroy humanity's enemies but decided humanity was it's own greatest enemy and endeavors to wipe them out. It is revealed later that Arieta is actually the source of power for G.O.D.'s doomsday weapon and that it has the ability to control Arieta's actions. It ultimately ends up being destroyed.
While it normally controls the X-0 WARLOCK it also controls an RF-027 JACKAL and the FZ-900J KILLER BEE as well.