Actually, Black Mage, Blues was going by the name Break Man to fool Mega Man and Dr. Light. If you've ever beaten the game, Dr. Light realizes that is must have been Protoman who saved Rock from being crushed after defeating Gamma, and later you see Dr. Light's design notebook, and Protoman is listed in there as well.
Also, he shows up in Mega Man IV to reveal the real villain...
Oh, and Lizard Dude, the story is that Dr. Light named them, you know... maybe he just likes music...
OH YEAH! I just remembered! I read in an interview with Keiji Inafune that they named him Rockman because they said when people hear Rockman, they think of Rock music, and that's percieved as being really cool and stuff. In Japan, anyway.
Edited by - Chupperson Weird on 7/1/2003 9:50:51 PM