Megaman is a robot video game from the future.
Mega Man is the hero of the games, created by Dr. Light, with assistance from Dr. Wily. Originally created as a lab assistant named "Rock", he was modified for battle after the disgruntled Dr. Wily reprogrammed the original Robot Masters. Due to his Variable Weapons System, he can copy the weapon of any Robot Master he defeats in combat and use it as his own. This ability can also be used by Protoman and Bass.
Proto Man's first appeared in the 1990 Mega Man 3, and was known as Break Man. At the end of Mega Man 3, Dr. Light reveals that Break Man's actual name is Proto Man, and that he is Mega Man's older brother.
Zero is one of the three main characters of the Mega Man X series, as well as the protagonist of the Mega Man Zero is a high ranking Maverick Hunter in the X series, and a legendary freedom fighter in theZero series, he's a die hard warrior who doesn't hesitate to take action. However, behind his cold and emotionless attitude lies a wounded soul.
Roll.EXE is the NetNavi counterpart of Roll and a supporting protagonist in MegaMan Battle Network and MegaMan: NT Warrior.
Axl is a playable character from theMega Man X series. He is a prototype of the new generation Reploids with the unique ability to mimic the external and internal characteristics of anyone he encounters. Axl has held important roles in two of the games he has appeared in so far, effectively making him the third playable protagonist of the Xseries alongside Mega Man X and Zero.
Bass is a Robot Master created by Dr. Wily to imitate Mega Man's design, along with Treble, an imitation of Rush's design. He was created based on a research conducted on Mega Man with the intention of surpassing his power sometime during or before the events of Mega Man 6, and made his debut in Mega Man 7. Bass is the prominent anti-hero of the Mega Man classic series, his goal is to defeat Mega Man and become the most powerful being in existence. Although Bass and Mega Man are rivals, at times they team up to take down mutual enemies of the two. Despite being created by Dr. Wily, Bass frequently rebels against his creator, usually for his own purposes.
Rush is Mega Man's robotic dog and a character in the Mega Man series.