Little Mac is the main protagonist in the Nintendo series Punch Out!!.
He is 17 years old, 4' 8" (142 cm, allegedly 5' 7" (170 cm) in the Wii version of Punch-Out!!), 107 lb (49 kg) and hails from the Bronx, New York. He is interested in getting into the World Video Boxing Association, which has a long history of rookie boxers joining the ranks in an effort to become world champions. He traveled to New York City in hopes of searching for someone that could train him. It was not until he met Jerome "Doc" Louis, who was a former heavyweight champion in his own right, that he began his journey to the top of the World Circuit. Doc gives Little Mac advice between rounds in each game.
Prior to this game, Little Mac and Doc Louis met by chance one day. Doc began teaching him everything he knew about boxing. After immense training, Little Mac enters the World Video Boxing Association. After beating several circuits under Doc's guidance, he finally becomes champion after defeating Mike Tyson / Mr. Dream.
Super Punch Out!!
Little Mac has changed his appearance completely in this game, with tan hair. It is unknown why, however. He once again enters the WVBA and again takes the title "Ultimate Champ".
Punch Out!! Wii
Assuming the commercials for the game can be taken as canon, Mac enters the WVBA fifteen years after Punch Out!! for the NES. Sometime before joining, he lost his title as champion to King Hippo. He enters the WVBA once again to win back his title as champion. He, again, wins the title this time.
Super Smash Bros. Brawl
Little Mac appears as an Assist Trophy in the game. He attacks by dashing to an opponent and unleashing either a punch or an uppercut.
Super Smash Bros. 4
Little Mac is a playable character in both versions of the game, and fights with his moves from his own series, such as the Star Punch and Power Meter. His Final Smash is Giga Mac, which is a form that debuted in Punch Out!! Wii's multiplayer.