Doctor Robotnik (ドクター・エッグマン Dokutā Egguman, lit. "Doctor Eggman") is the main antagonist in Sonic the Hedgehog: The Movie. He is a human scientist who lives in the Land of Darkness on Planet Freedom, and is the arch enemy of Sonic the Hedgehog. Obsessed with world domination, Robotnik's ambition is to destroy the Land of the Sky and establish himself as the undisputed ruler of the entire planet, with the President's daughter, Sara, as his queen. From the capital of his empire, Robotropolis, Robotnik has launched many evil schemes to conquer the world, but has been repeatedly stopped by Sonic and his allies. Recently, Robotnik launched his most devious scheme to date where he fooled Sonic to come to Robotropolis and used the hedgehog to bring his greatest invention to date, Hyper Metal Sonic, to life. With the perfect weapon at hand, Robotnik launched an attack against Sonic and the Land of the Sky in a decisive attempt to conquer the planet.