Vectorman
In the year 2049, the Earth has turned into a toxic waste dump. Humanity has fled into space, leaving behind an army of mechanized "Orbots" to clean up the mess. When the leader of the Orbots, "WarHead", goes berserk and incites a worldwide revolt against the humans, it is on the shoulders of the last Orbot, loyal to his human masters, to save the planet.
Story
In the year 2049, the human population of Earth embarks on a journey to colonize other planets. They leave behind mechanical "orbots" to clean up the mess they have made on Earth by littering and polluting. Raster, a high-ranking Orbot who monitors Earth via a planet-wide computer network, is accidentally hooked up to a working nuclear missile by a less powerful Orbot and goes berserk, becoming an evil dictator named Warhead. He declares himself ruler of Earth and prepares to execute all humans who dare return to their planet. That's where VectorMan comes in, a humble orbot in charge of getting rid of toxic sludge by simply unloading it into the sun. When he lands on Earth after his latest trip, he finds chaos and confusion. Since all the other Orbots are controlled by Warhead (VectorMan was unaffected because he was away), VectorMan takes it upon himself to destroy the mad Orbot and restore peace to Earth.