Galvatron, once the Decepticon warlord Megatron, was reforged by Unicron into a heightened form under a pact to annihilate the Matrix of Leadership. Retaining Megatron’s memories and spark, his psyche fractured into megalomania and erratic impulses. Surviving Cybertron’s destruction, he reclaimed Decepticon command, launching a galactic energy-harvesting crusade to reshape Earth into a planetary-scale body for himself, mirroring Unicron’s might. This scheme required assimilating both his own troops and planetary matter, showcasing his ruthless indifference to loyalty or devastation. In Japan’s *The Headmasters* continuity, Galvatron schemed to harness Earth’s energy, forging himself into a Unicron-like entity dubbed Grand Galvatron. He enlisted Sixshot, a loyal warrior, but faced defiance when Sixshot rejected becoming a sacrificial component. Stranded against the Autobot Headmasters’ united "Head Formation" assault, Galvatron was defeated and encased in an icy prison, his physical shell immobilized while fragments of his spark lingered. The *Unite Warriors* narrative saw Galvatron’s disembodied essence possessing Cyclonus, using his frame as a foundation to merge with Thrust, Breakdown, Roller, and a partially rebuilt Starscream, forming a new Grand Galvatron. This amalgamation aimed to conquer Cybertron but clashed with Autobot combiners such as Sky Reign and Megaempress. After diverting Unicron during an invasion, Grand Galvatron’s components dispersed following Unicron’s downfall. Later, in *Kiss Players*, Galvatron’s wreckage plummeted to Earth, triggering cataclysmic destruction and inadvertently enabling human-Transformer fusion tech. Atmospheric dispersal of his cells spawned monstrous "Legion" hybrids, though his corporeal remnants were later ejected into space, crashing on Thrull. Galvatron’s iterations consistently embody ruthless ambition intertwined with self-consuming madness. His strategies pivot on cosmic devastation or bodily transcendence, frequently thwarted by underling betrayals—like Sixshot’s defiance—or Autobot counterstrikes. Despite repeated downfalls, his capacity to endure through possession or fusion cements his status as a perpetual menace.