Proto Man, known as Blues (ブルース Burūsu) in Japan, is a character from the original Mega Man series. He is the first of the Light Numbers ever created by Dr. Light, even before Mega Man himself. Considered the "older brother" of Mega Man and Roll, he is a lone wolf and a rival-mentor to Mega Man. He first appeared in Mega Man 3, challenging Mega Man to ensure he had what it took to defeat Dr. Wily.