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Bull-Bull (ブルブル, Buruburu) is the leader of the Cow's Stomach gang and a criminal with an A-Class bounty on his head. He is the main antagonist of the "What Can't Be Bought" extra chapter.


Bull-Bull is a large human who wears a hoodie with a cow pattern and his name on it, and a helmet with goggles and bull horns.


Bull Bull is a heartless individual, threatening to kill a child if the C-Class heroes didn't let them get away.

Appearances in Other Media[]


What Can't Be Bought[]

Bull-Bull and his crew of criminals attempt a bank robbery at a bank that Saitama just happens to be at. They take a child hostage but are interrupted by D-Pad and Funeral Suspenders. After successfully defeating several of his henchmen, both heroes are defeated simultaneously by Bull-Bull.

They quickly leave the bank, taking the child with them as a hostage. While driving away they suddenly lose control of their car due to Saitama lifting it up and running it to a vending machine he was previously trying to buy from. He is quickly defeated after leaving the car and attacking Saitama.

Abilities & Powers[]

As an A-Class criminal it can be assumed that Bull-Bull is fairly powerful.

Physical Abilities[]

Enhanced Strength: Bull-Bull is shown to have great strength and is able to defeat two C-class heroes by ramming them with his head like a bull.

Enhanced Durability: Bull-Bull's head is five times stronger than that of a bull.[1]

Major Battles[]


  1. 1.0 1.1 1.2 One-Punch Man Encyclopedia; One-Punch Man: Hero Perfection, page 185


S-Class Gale WindHellfire FlameSpeed-o'-Sound Sonic
B-Class Hyaha Axe
Ex-Villains Dr. GenusHammerheadMen's Esthetician Man
Undetermined Class