Sonic’s arch nemesis Dr. Robotnik has been banished from the Land of Darkness by an evil Metal Robotnik. The devious doctor tells Sonic that the Robot Generator has been sabotaged…

Kenichi and his detective uncle, Shunsaku Ban, leave Japan to visit Metropolis, in search of the criminal, Dr. Laughton. However, when they finally find Dr. Laughton, Kenichi and Shunsaku find…