Editing Grandpa Gohan (section)

== Biography ==

=== Background ===
Grandpa Gohan trained as a martial artist under [[Master Roshi]], alongside [[Ox-King]], with whom he became close friends. As a pupil, he was especially skilled, surpassing Ox-King by mastering Roshi's Kamehameha technique and, in one sparring match, compelling Master Roshi to use his Turtle Style Last Resort. Grandpa Gohan also wielded the Power Pole, a gift from Master Roshi.

In his later years, Grandpa Gohan lived alone on Mount Paozu. He adopted Goku after finding him as a baby near his landing site and took on the role of Goku’s mentor and guardian. Initially, young Goku exhibited the aggressive nature typical of Saiyans, but after a head injury from falling into a ravine, he lost his memory, becoming the cheerful and good-hearted boy Grandpa Gohan raised. Grandpa Gohan trained Goku in martial arts and warned him to avoid looking at the full moon, hinting that Goku had previously transformed into a Great Ape, though Grandpa Gohan survived this initial transformation.

One fateful night, Goku disobeyed the warning, glanced at the full moon, and transformed into a Great Ape, accidentally killing Grandpa Gohan in the resulting rampage. Unaware of the true events, Goku believed a "monster" was responsible for his grandfather’s death, associating Grandpa Gohan’s spirit with the Four-Star Dragon Ball he left behind. It was not until much later, during his battle with [[Vegeta]], that Goku finally realized he had been responsible for his grandfather's death and felt deep remorse.

=== Jaco the Electric Patrolman ===
In Mount Paozu, Grandpa Gohan encounters a young alien who arrived on Earth from the sky. Taking the child home, Gohan feeds him and questions his origins, eventually naming him "Son Goku" due to his mysterious arrival from above. Unlike the anime version, ''Dragon Ball Minus'' portrays Goku as around three years old when Gohan finds him, wearing Saiyan Battle Armor—a change from earlier depictions where he arrived as an infant. Goku's biological parents, [[Bardock (Dragon Ball Super)|Bardock]] and [[Gine]], sent him to Earth for safety, reshaping the narrative compared to ''Bardock – Father of Goku''.

In ''Dragon Ball Minus'', Goku appears more manageable, although Grandpa Gohan implies they initially clashed before bonding over food, which aligns with Master Roshi’s statements about the wild nature of pre-head injury Goku. ''Dragon Ball Super: Broly'' and flashbacks in the ''Granolah the Survivor Saga'' incorporate elements of ''Dragon Ball Minus'', including Bardock’s protective characterization and Goku's attire, signaling a retcon of ''Bardock - Father of Goku'' as non-canon in ''Dragon Ball Super.''

=== Dragon Ball ===

==== Fortuneteller Baba Saga ====
In the Fortuneteller Baba Saga, Goku, [[Yamcha]], [[Puar]], [[Upa]], and [[Krillin]] face Fortuneteller [[Fortuneteller Baba|Baba's]] five fighters in order to locate the last Dragon Ball. Goku, the last contestant, faces a mysterious masked fighter, whom Master Roshi recognizes as Goku's deceased grandfather, Grandpa Gohan. During the battle, Grandpa Gohan uses his knowledge of Goku’s tail weakness, grabbing it and swinging Goku around to demonstrate Goku’s vulnerability. When Gohan accidentally tears off Goku’s tail, Goku becomes enraged, and Grandpa Gohan surrenders, revealing he only wanted Goku to learn to overcome his weakness.

Once his identity is revealed, Goku embraces his grandfather in an emotional reunion. Grandpa Gohan explains that Fortuneteller Baba’s powers allowed him to return to life for one day, giving him this chance to see his grandson. After listening to [[Bulma|Bulma’s]] recount of the Dragon Ball adventures, Grandpa Gohan expresses satisfaction with his afterlife and declines further attempts to bring him back, bidding Goku and his friends a final farewell before vanishing. In a lighthearted moment, he hints at some of Master Roshi's playful traits, noting, "I've got a lot of friends, and most of them are brunettes."

==== Piccolo Jr. Saga ====
in anime filler during the final two episodes of ''Dragon Ball'', Grandpa Gohan makes another appearance when Goku and [[Chi-Chi]] are on a quest to extinguish a new fire engulfing Fire Mountain, where Ox-King is trapped, protecting Chi-Chi’s wedding dress. As Goku and Chi-Chi venture into the Spirit Furnace’s cave, which connects the living world and the afterlife, they encounter illusions and eventually meet Grandpa Gohan. Initially mistaking him for the legendary furnace keeper [[Annin]], Goku soon learns that his grandfather is now Annin’s bodyguard, tasked with protecting the lever that controls the Spirit Furnace.

After a brief encounter with Annin, Goku receives permission to enter the furnace depths, where he patches a leak, ending the fire. Goku bids a final farewell to Grandpa Gohan as he and Chi-Chi leave, ready to start their married life together.

=== Dragon Ball Z/GT/Super ===
Throughout ''Dragon Ball Z'', Grandpa Gohan appears multiple times in flashbacks, often representing key moments in Goku's past.

In the first flashback, Master Roshi recounts Grandpa Gohan's story of finding Goku. This scene implies Goku’s initial Great Ape transformation happened off-screen after arriving on Earth, as Gohan is shown discovering Goku amidst destroyed trees in daylight, knowing about Goku's transformation long before the ''Dragon Ball'' series events.

In the ''Vegeta Saga'', Goku remembers Grandpa Gohan warning him not to go outside during a full moon, realizing, when he sees Vegeta transform, that his own Great Ape form killed Gohan. He apologizes and vows to defeat Vegeta in his memory.

In the ''Peaceful World Saga'', Goku recalls being found by Grandpa Gohan, shown in sepia tone, and reminisces on the rigorous training that made him a strong fighter.

In ''Dragon Ball Super'', Grandpa Gohan is mentioned during the ''Universe Survival Saga'', where Goku attributes his heroic spirit to Gohan's teachings. He’s also referenced during the ''Granolah the Survivor Saga'' in Goku's conversation with Vegeta, [[Monaito]], and [[Granolah (Dragon Ball)|Granolah]].

In ''Dragon Ball GT'', Goku has a flashback of Grandpa Gohan holding him up in the air, shown during Goku’s last walk outside the World Martial Arts Tournament arena in the ''Shadow Dragon Saga''.

In ''Super Dragon Ball Heroes'', during the ''Supreme Kai of Time Saga'', an incarnation of Grandpa Gohan participates in the Super Space-Time Tournament and faces off against Master Roshi, with both using powerful attacks in an intense energy clash.