Subtitle: Monster Chief (怪獣酋長 Kaijū Shūchō)
Geronimon was a incredibly powerful monster who was reputed to be the leader of the Earth monsters. He was angered by the Science Patrol and Ultraman for constantly killing his monsters, so, in revenge he, revived Telesdon, Dorako, and Pigmon as a warning to the Earth. Re-Pigmon revealed that Geronimon's plan was to revive 60 more monsters in order to take over the planet and defeat Ultraman with this army of monsters.
After Telesdon and Dorako were killed by the Science Patrol (Re-Pigmon was killed by Re-Dorako), Geronimon appeared from within a mountain and attacked the Science Patrol himself. Ultraman eventually showed up, rescuing the Science Patrol and confronting the Monster Chief. Geronimon used his razor-sharp feathers to attack Ultraman and chase him into the sky, but Ultraman destroyed most of the them and then he pounced on Geronimon, restraining the monster using his knees. Ultraman then enraged Geronimon by tearing out all the feathers on his head. Geronimon tried to use his Anti-Gravity Mist on Ultraman, but the hero redirected the mist with his Ultra Barrier, lifting Geronimon into the air. Ultraman held Geronimon steady as his colour timer started to blink, and the monster was shot and killed by the Science Patrol.
- Suit actor: Teruo Aragaki
- Geronimon's roar is a modified roar of Mongular (from Ultra Q).
- Geronimon was originally suppose to revive the monsters, Red King and Gabora, but due to the condition of the suits (both being overused), they were replaced by Telesdon and Dorako.
- Geronimon's name comes from the Geronimo, the chief of the Chiricaha tribe of the Apache Native Americans, hence his nickname as the Monster Chief and the numerous feathers decorating his head.
- Stage show suits of Geronimon usually depict its feathers with a blanket of fur.
- In at least one stage show, Geronimon sides with Ultraman Zero to fight a rampaging Nosferu.
- Height: 40 m
- Weight: 30,000 t
- Powers and Weapons
- Telekinesis: To make the motion of his Feather Shurikens more unpredictable, Geronimon can direct these feathers using Telekinesis, simply by waving his hands. Geronimon is also able to use this ability in conjunction with his Anti-Gravity Mist technique.
- Feather Shot (フェザーショット Fezā Shotto): The feathers lacing Geronimon's tail and back are capable of launching out with a mere flick, which it then redirects using its psychic powers to effectively transform them into projectiles.
- Anti-Gravity Mist: Geronimon can expel a levitating, anti-gravity mist from his mouth, capable of lifting up humans and giant monsters into the air.
- Resurrection: Geronimon is capable of using necromancy to resurrect up to sixty monsters from the dead, sometimes modifying them from their original forms.
- Ultraman Fighting Evolution Rebirth
- Fireballs: When bringing his hand together, Geronimon can launch purple, missile-strength fireballs from his palms.
- Psychic Power: Geronimon possesses powerful psychic abilities, enough to levitate an opponent.
Ultraman Fighting Evolution Rebirth
Ultraman ventures to a frozen arctic wasteland. While there, Ultraman is ambushed by a revived Geronimon, who is trapped inside of a giant icicle. Shortly after, Geronimon breaks out of the icicle and attacks Ultraman himself. After fighting him three times, Geronimon collapses, dead once again. Later on in the story, the feathers on his head are used as an extra body-part for EX Tyrant.
Ultraman Story 0
Ultraman Story 0
|Ultraman Kaiju & Seijin|
|Bemular | Alien Baltan | Neronga | Ragon | Greenmons | Guesra | Antlar | Red King | Chandora | Magular | Suflan | Pigmon | Gabora | Jirass | Gango | Mummy Man | Dodongo | Pestar | Gamakujira | Gavadon | Alien Baltan II | Bullton | Alien Zarab | Aboras | Banila | Hydra | Kemular | Underground People | Telesdon | Jamila | Gubila | Guigass | Dorako | Red King II | Suflan II | Gomora | Dada | Goldon | Woo | Keronia | Zambolar | Alien Mefilas | Giant Member Fuji | Alien Baltan III | Kemur Man II | Alien Zarab II | Skydon | Seabozu | Zaragas | Re-Pigmon | Re-Dorako | Re-Telesdon | Geronimon | Kiyla | Saigo | Alien Zetton | Zetton|