Vega, a Spanish nobleman, mastered ninjutsu in Japan and fused it with bullfighting to forge his distinct combat style. His traumatic past includes his mother's murder by an abusive, physically unattractive stepfather, forging a pathological link between ugliness and evil within him. This tragedy cemented his obsession with beauty and the conviction that anything aesthetically displeasing must be destroyed. His profound narcissism manifests in wearing a mask solely to shield his face during combat, preserving his self-perceived physical perfection.

In *Street Fighter II: The Animated Movie*, Vega acts as a personal assassin for the criminal leader M. Bison. Sent to eliminate Interpol agent Chun-Li, he infiltrates her apartment and ambushes her. During their confrontation, he displays sadistic tendencies, expressing a desire to skin her alive and licking her blood from his claw after wounding her. His fighting style relies on acrobatics, claw attacks, and leveraging the environment, like climbing structures for tactical advantage.

The fight shifts decisively when Chun-Li damages Vega's face, shattering his mask. Horrified by this injury to his appearance, he flies into a rage and loses composure. Despite initial dominance, Chun-Li defeats him by kicking him through a wall, sending him falling several stories. This failure prompts Bison to order Sagat to locate and execute Vega if he survived; his ultimate fate remains unconfirmed within the movie.

Across other media, Vega retains these core traits. He serves as a high-ranking Shadaloo assassin, though his loyalty is transactional rather than ideological, aligning with Bison primarily to pursue his beauty-related goals. He harbors a predatory fascination with physically attractive female fighters like Chun-Li and Cammy, distinct from genuine affection. His disdain extends to fellow Shadaloo members he deems crude or ugly, such as Balrog.

Within the broader *Street Fighter* narrative, Vega periodically leaves Shadaloo following Bison's defeats but consistently returns upon the organization's resurgence, citing admiration for Bison's determination as a form of "beauty," despite lacking investment in Shadaloo's world domination goals. His fighting techniques consistently feature his claw, environmental interaction like wall-climbing, and swift aerial assaults, reflecting his ninjutsu and bullfighting fusion.