Mega Man, known as Rockman (, Rokkuman) in Japan, is a Japanese science fiction video game franchise created by Capcom, starring a series of robot characters each known by the moniker 'Mega Man'. Mega Man, released for the Nintendo Entertainment System in 1987, was the first in a series that expanded to over 50 games on multiple systems. As of March 31, 2021, the game series has sold 37 million units worldwide. The original Mega Man series consists of eleven main games, a side game titled Mega Man & Bass, as well as all Game Boy, Sega Genesis, Sega Game Gear and other console games featuring the original design of Mega Man. Although the classic series has yet to reach an ending, the storyline shifts to the Mega Man X series, followed by the Mega Man Zero series, two Mega Man ZX games and three games for Mega Man Legends. All Mega Man series follow one continuous timeline except for Mega Man Battle Network and Mega Man Star Force, which take place on a separate alternate timeline where the internet flourished rather than robotics. Games = Original series =In the story behind the original series, Mega Man is a robot originally named Rock, created as a lab assistant by the scientist Dr. Light with Dr. Wily as his partner. Following treachery by Dr. Wily in which he reprogrammed most of Dr.