What is the real name of the character Proto Man?

The real name of the character Proto Man is Blues. In the Japanese version of the Mega Man series, Proto Man is called Blues, while the English localization uses the name Proto Man.

Proto Man is the prototype robot created by Dr. Thomas Light and is identified as Mega Man’s older brother. He first appeared in Mega Man 3, initially posing as the mysterious Break Man before his identity was revealed.

The name can be confusing because “Blues” is not merely a nickname used casually in the story; it is the character’s Japanese name and a canonical identity used throughout the franchise. Bass, known as Forte in Japan, is a separate robot created by Dr. Wily, while Rock is Mega Man’s original name before his conversion for combat.