TV-Series
Description
Geronimo Young McDaniel, a Native American of the Cherokee Nation in Oklahoma, began life human. A childhood incident where a mysterious Chojin saved him and his sister from a crushing boulder ignited his ambition to become a Chojin himself. Raised alongside his sister by adoptive guardian Chief Cheyenne after their father's death, he endured rigorous training. Geronimo initially concealed his human identity to fight alongside the Justice Chojin, driven by a strong sense of justice and admiration for figures like Terryman.

During the Golden Mask Arc, he defended the Justice Chojin, breaking free from a life-containment bubble. He vocally supported Kinnikuman, earning Wolfman's deep respect; Wolfman requested Geronimo cut his topknot as a final act of friendship before sacrificing himself. Geronimo later joined the mission inside Warsman's body, confronting the Devil Knight Sunshine in the Five Story Ring. Sunshine's Hell’s Pyramid technique pierced his chest, revealing his human vulnerability. Despite severe injuries, Geronimo deduced Sunshine's weakness to loud noise and used his Apache War Cry to win, even stopping and manually restarting his own heart mid-battle.

General Devil threw the injured Geronimo from the ring, causing a five-story fall. Near death, he held up the collapsing Five Story Ring to allow others to escape. Attempts by fellow Chojin to heal him by sharing power failed as his human body rejected it, resulting in his death. His spirit later aided in stabilizing the ring during Kinnikuman's final battle. Though revived by Perfect Mask, his soul remained detached. Terryman sought Chief Cheyenne's help, leading Geronimo's soul to undertake a trial on the Superman Road. There, he encountered the same Chojin who saved him in childhood—revealed as the God of the Superman Road. Completing the trial granted him true Chojin status and a Chojin Kyoudo of 830,000 Power.

As a full Chojin, Geronimo partnered with Terryman to form the tag team New Machineguns in the Universal Chojin Tag Tournament. Their first-round opponents were the revived Ashuraman and Sunshine. Geronimo struggled against Sunshine again, suffering a crushed arm from Sunshine's Cursed Roller. The team faced near defeat until Kinnikuman intervened, reigniting Geronimo's friendship power. Later, during the Survivor Match for the Kinniku Throne, Geronimo won the Hawaii Superhuman Heavyweight Championship but was erased by Omega Man in the finals. His spirit assisted Kinnikuman before Kinnikuman's Face Flash technique fully revived him.

In the "God of Harmony" arc, Geronimo's unique physiology allowed him to resist the lethal Seven Rays of Capillaria. This resistance led Prismman to entrust him with the Capillaria Shard, making him essential in defeating the Ultra Gods. Chosen as the first challenger against the Ultra God Executor, he overcame a severe throat injury that silenced his Apache War Cry by developing new techniques, ultimately triumphing.

Geronimo's techniques reflect his heritage, including the Apache War Cry, its stronger variant Apache Death Scream, Tomahawk Chop, and Tomahawk Tornado. He uses collaborative moves like the Tornado Hell Counter with Terryman and Sorrowful Rain of Friendship with Brocken Jr. His personality evolved from earnest and respectful to briefly abrasive after becoming a Chojin, stabilizing as kind-hearted and direct. He consistently refers to senior Idol Chojin with honorifics like "senpai" and maintains humility regarding his abilities. His legacy extended into the future, inspiring the character Chaos as a model for humans fighting alongside Chojin.