Muscle Punch

Muscle Boy (筋肉ボーイ, kinniku boi) is a member of Umemiya Ryunosuke's Gang and is his adviser.

Apperance
Muscle Boy wears a red wool hat, shorts and a orange jacket with a M (for his nickname) on the left sleeve.

Meeting with Tokageroh
Muscle Boy takes Ryu and the gang to the Funbari Bowling Alley asking him if they can make it there new best place. However, Ryu refuses because it is too far from the train station and there are no convenience stores nearby. When Ryu is possessed by Tokageroh, he tells his gang to break into the museum and steel Amidamaru's Harusame. Muscle Boy refuses because that would make him a robber and ends up getting stabbed in the leg by him. Ball Boy helps carry Muscle Boy to Yoh's House so they can stop Tokageron from killing Manta.

Shaman Fights in Tokyo
Before Ryu goes to America, Muscle Boy and the others write him a farewell card.

Travel through America
Muscle Boy is mentioned by Ryu claiming that anybody that looks like him may not be a bad guy after meeting Chocolove.

Anime/Manga Differences
In the English anime, the scene when the possessed Ryu stabs Muscle Boy in the leg is edited out.

Trivia

 * According to the Character Files, Muscle Boy has 10 siblings
 * Ryu claims that Chocolove McDonell looks a lot like Muscle Boy because of their lips