The robot creator Doctor Light created two human-like robots with advanced artificial intelligence named Rock and Roll. Following this, he created eight more robots intended for industrial use: Cut Man, Guts Man, Ice Man, Bomb Man, Fire Man, Elec Man, Time Man, and Oil Man. He received a Nobel Prize for Physics, and his old colleague and rival Doctor Wily has grown bitter for not being acknowledged for his work on the project. Wily discovered a prototype robot made by Doctor Light before Rock and Roll called Proto Man, who is in danger of having his energy generator go critical. Wily gave him a nuclear energy supply to extend his life. He later steals and reprograms the eight industrial robots to attempt world domination. Rock volunteered to stop Wily and rescue his friends, and Dr. Light converted him into a fighting robot, giving him a new name: Mega Man. After defeating all eight Robot Masters and returning them to normal, Mega Man goes through Dr. Wily's fortress and challenges him. After beating Wily, the mad scientist surrenders and asks Mega Man to spare him. Mega Man then returns home, where he's greeted by Dr. Light, Roll, and his friends.