Mr. Big, a ruthless Southtown crime lord central to the *Art of Fighting* saga, rules through calculated intimidation, manipulation, and brute force. His true identity is cryptically linked to the initial "J," with scattered official sources suggesting "James" as a possibility. As the city’s foremost criminal overlord, he engineers the abduction of Yuri Sakazaki to blackmail her father, Takuma, into servitude—a scheme that sparks a clash with Yuri’s brother Ryo and his ally Robert Garcia. Their victory shatters his dominance, forcing him into a subordinate role under rival kingpin Geese Howard, who eventually enlists him as a key enforcer.

Though outwardly loyal to Geese, Mr. Big covertly plots to reclaim his former status, entering the King of Fighters tournament to undermine his superior and amplify his syndicate’s reach. Their alliance fractures when he uncovers Geese’s manipulation during an Orochi power experiment, prompting a failed assassination attempt thwarted by Geese’s lieutenant Billy Kane. Years afterward, he retaliates by targeting Geese’s inner circle, underscoring their enduring feud.

A master of Filipino Eskrima/Arnis enhanced by electrokinetic prowess, Mr. Big wields electrified rattan sticks to unleash crackling projectiles and spinning defenses. His military-honed reflexes grant lethal agility, yet Kyokugenryu fighters—particularly the Sakazaki lineage—repeatedly outmatch him. In a rare display of nuance, he later safeguards Geese’s widow, Marie Heinlein, though his reasons—fear, grudging respect, or buried ethics—stay unresolved.

Over decades, his persona shifts from a ostentatious mobster reveling in opulence and admirers to a hardened veteran in *Fatal Fury: City of the Wolves*, mirroring his dogged survival in Southtown’s underworld. Spin-offs like *Neo Geo Battle Coliseum* and *The King of Fighters* reiterate his relentless scheming to resurrect his empire, cementing his legacy as a tenacious, albeit diminished, antagonist.