Goku, originally named Kakarot, arrived on Earth as a Saiyan infant moments before his planet's annihilation. Adopted by Grandpa Gohan, a head injury reshaped his innate Saiyan aggression into pure-heartedness, forging his core traits: immense strength, relentless combat determination, and a fierce drive to defend Earth — though his primary motivation remains testing his limits against powerful foes. His appearance showcases spiky black hair, dark eyes, and a lean, muscular physique that evolved from youth to adulthood. He consistently wears martial arts gi marked with symbols of mentors or affiliations, like King Kai's kanji or Galactic Patrol emblems. Attire variations include snow jackets for extreme environments and specialized training gear from Whis. Goku wields extensive combat abilities through martial mastery and ki manipulation. Key techniques encompass energy projections such as the Kamehameha, flight, teleportation, and sensory detection of energy signatures. Transformations exponentially amplify his power, escalating from Super Saiyan tiers to divine states like Super Saiyan God and Super Saiyan Blue, unlocked via grueling training and sacred rituals. The Ultra Instinct state epitomizes his combat zenith, enabling autonomous movement beyond conscious thought. During *Dragon Ball Super: Super Hero*, Goku trains with Vegeta and Broly on Beerus' planet under Whis' tutelage. His absence refocuses the narrative on Piccolo and Gohan confronting the revived Red Ribbon Army, androids Gamma 1 and Gamma 2, and the bio-engineered Cell Max. Goku features primarily in a post-credits sparring match against Vegeta, culminating in Vegeta's decisive strike before mutual collapse, underscoring their rivalry and shared pursuit of growth. Relationships anchor Goku's evolution. Married to Chi-Chi, he fathers sons Gohan and Goten. His bond with Piccolo transitioned from rivalry to steadfast alliance, cemented by Piccolo's mentorship of Gohan. Alliances with Krillin, Bulma, and Master Roshi, alongside complex ties to former adversaries like Vegeta and Frieza, frequently galvanize his battles to safeguard others.