Junior Centipede is a towering, human-faced centipede who ran with the Monster Association. Grown to freakish size in a cave, he once believed no creature outmatched him, until Senior Centipede humbled him. His rampage ended at the hands of the S-Class hero Metal Bat.
The monster takes the shape of a giant centipede topped with a strangely human face. In its anime appearance, the long body is rendered in red.
Junior Centipede's inner character stays mostly murky, though a few traits come through. He extends genuine respect to Senior Centipede and to anyone who can beat him in a fight, Metal Bat included. A streak of arrogance also runs through him, a holdover from his cave days when his freakish growth convinced him he was the largest centipede alive.

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Junior Centipede began as an ordinary centipede that swelled to unnatural proportions inside a cave, and the isolation bred an inflated sense of his own importance. Certain that nothing sat above him on the food chain, he held that belief until Senior Centipede crossed his path, after which respect replaced his pride.
He surfaced alongside Venus Mantrap at a restaurant during the Monster Raid, snatching up the young child of the Hero Association's sponsor while hunting for the sponsor himself. Before he could seize his real target, Metal Bat grabbed him by the coat and threw down against both monsters. The clash left Junior Centipede sprawled and gravely wounded. Even then he praised Metal Bat's power and pressed him on just how high he really ranked among the strong. Metal Bat never got the chance to finish the job, because Senior Centipede burst up from the earth first.
Though his exact disaster level was never recorded, his sheer bulk and his ties to the other centipede monsters mark him as a formidable being, and he could tunnel through the ground at considerable speed.
Junior Centipede is a towering, human faced centipede monster who ran with the Monster Association. He grew to enormous size inside a cave and originally believed himself the strongest centipede alive, until Senior Centipede humbled him.
Junior Centipede began as an ordinary centipede that swelled to unnatural size while living inside a cave, and the isolation left him believing he sat at the top of the food chain.
Metal Bat confronted Junior Centipede during the Monster Raid after the monster snatched a child while hunting for the Hero Association's sponsor. Metal Bat's attack left Junior Centipede sprawled and gravely wounded before Senior Centipede intervened.
Junior Centipede once believed nothing outmatched him until he crossed paths with Senior Centipede, who defeated him and earned his genuine respect. He extends that same respect to anyone strong enough to beat him, including Metal Bat.
Junior Centipede can tunnel through the ground at considerable speed and has the ability to transform, reflecting his monstrous centipede physiology. His exact disaster level was never recorded, but his size and ties to other centipede monsters mark him as a formidable threat.
Looking for more on Junior Centipede? The One-Punch Man Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the One-Punch Man anime series, manga, and official materials. One-Punch Man was created by ONE and Yusuke Murata, published by Shueisha, and animated by J.C.Staff and Madhouse. All rights to One-Punch Man and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
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