Introduced as a fifteen-year-old genius and heiress to Capsule Corporation, founded by her father Dr. Brief, Bulma possesses extraordinary intellect. She graduated university early and invented the Dragon Radar to locate mystical Dragon Balls. Her initial quest motivation shifts from desiring a lifetime supply of strawberries to wishing for a perfect boyfriend. This pursuit leads her to encounter Goku in Mount Paozu, forging a partnership that marks the start of their adventures and makes her Goku's first human friend beyond his deceased guardian, Grandpa Gohan.

Early expeditions showcase Bulma's resourcefulness and occasional vulnerability. She recruits allies like the shapeshifter Oolong and desert bandit Yamcha, developing a romantic relationship with the latter. Her travels include perilous encounters, such as being transformed into a carrot by Monster Carrot and nearly enabling Emperor Pilaf's world-domination wish before Oolong intervenes. These experiences highlight her adaptability, though her initial self-centeredness surfaces when she privately considers exploiting Goku's four-star Dragon Ball.

Maturing, her role evolves from adventurer to essential technological supporter. She repairs Kami's spaceship for the journey to Namek, reverse-engineers Frieza's Saiyan armor, and develops devices like the Micro Band for miniaturization. Her intellect extends to alien technology, allowing her to modify and improve advanced machinery with minimal exposure. Facing the Android threat, she designs their deactivation switch and repairs Android 16, inadvertently removing his self-destruct capability. In a dystopian future timeline, she dedicates years to building a time machine to prevent the Androids' rise, entrusting her son Trunks with medicine to save Goku's life.

Bulma's personal life shifts significantly. Her long-term relationship with Yamcha ends, and she forms a bond with Vegeta during his Earth stay post-Namek saga, leading to marriage and the births of Trunks and Bulla. Emotional infidelity implications precede her formal breakup with Yamcha. As a mother, she balances concern for Trunks' safety with recognition of his fighter responsibilities. Her dynamic with Vegeta features mutual respect amid frequent clashes, exemplified when his protective rage erupts after Beerus slaps her.

Her scientific contributions remain pivotal in later conflicts. She creates the Super Dragon Radar for multiversal Dragon Balls, engineers a spaceship for the Black Star Dragon Ball saga, and develops the Blutz Wave Generator to induce Great Ape transformations. During the Goku Black crisis, she constructs another time machine for Goku and Vegeta. Her leadership extends to organizing financial incentives for Universe 7's Tournament of Power participants.

Visually, Bulma undergoes more documented appearance changes than any other character, featuring eighteen distinct hairstyles. Her clothing often bears Capsule Corporation branding. Hair color varies across adaptations—blue in early anime, purple in manga color spreads—with Trunks' hair color inconsistency attributed to dye in one timeline. Physical attributes include recorded bust, waist, and hip measurements during adolescence and adulthood.

Family relationships contextualize her character. She has an older sister, Tights, a science fiction writer who graduated university at sixteen. Bulma's parents exhibit a laissez-faire attitude; her mother remains unnamed in original material but is later referred to as Bikini or Panchy. Bulma demonstrates nuanced understanding of Goku and Vegeta, describing Goku as inspiring hope while cautioning Trunks about Vegeta's harsh demeanor.

Tragedies shape her resilience, including temporary deaths during Majin Buu's attacks and witnessing the apocalyptic future where Androids kill Earth's warriors. Despite minimal combat prowess—her only recorded fights involve team efforts against Goku's Great Ape form and Future Zamasu—her strategic support proves indispensable across every major series conflict.