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Gelderah in Zone Fighter
Subtitle(s) Red Headed Terror-Beast
(赤色頭脳恐獣,   Akairo Zunō Kyōjū)[1]
Height 78 meters[2]
Weight 74,000 metric tons[2]
Place(s) of emergence Planet Garoga[1]
Controlled by Garogas
Relations Garogas (creators)
Allies Garogas
Enemies Zone Fighter
First appearance Zone Fighter episode 8,
"Defeat the Invader of Fear!"

Gelderah (ゲルデラー,   Geruderā) is a kaiju created by Toho that first appeared in episode 8 of the 1973 tokusatsu kaiju series Zone Fighter, titled "Defeat the Invader of Fear!"


Gelderah bears resemblance to a beaked dragon, and also has features of an insect such as the large antennae protruding from his forehead. He also has pointed, elf-like ears for hearing and his brain is visible in between them which glows red and orange. His scales are yellow and blue.


Zone Fighter

"Defeat the Invader of Fear!"

After a Garoga Terror-Missile had crashed into a lake and Zone Fighter had stopped the activity of the Garoga agents nearby, the missile exploded and released the Red Headed Terror-Beast Gelderah. Zone Fighter grew to giant size and engaged Gelderah in an epic battle, concluding with Zone Fighter cutting the monster's head off with a level 2 Arrow Beam.


Physical abilities

During his fight with Zone Fighter, Gelderah grappled the hero and hit him on the back a few times. He possesses sharp teeth, and used them to bite down on Zone Fighter's neck, causing him to yell out in pain. He followed this attack by knocking the hero around with some swipes.

White-Hot Ray

Gelderah can breath a corrosive mist from his mouth that can cause explosions or set anything it contacts ablaze. According to All Kaiju Kaijin (First Volume), this attack is called a White-Hot Ray (白熱光線,   Hakunetsu Kosen).[3] Gelderah used this mist on Hikaru's Mighty Liner, causing the vehicle to start smoking, leaving Hikaru to transform into his giant form. After Zone Fighter gained the upper hand on Gelderah, the Terror-Beast forced the hero off of him with the mist.

Brain and antennae

Gelderah's brain and antennae help him track his opponents' movements.[3]


After the Terror-Beast Missile activated, Gelderah emerged from it while underwater and attempted to attack Hikaru immediately afterwards, before surfacing from the lake he was in.


After emerging from the lake, Gelderah endured numerous blasts from Hikaru's Mighty Liner, including the Dyna-Beam, but only appeared to be irritated by it. When fighting his giant form, Gelderah withstood two Meteor Punches to the face and one to the chest, yet seemed unbothered by it. Gelderah also survived a volley of Zone's Meteor Missile Might, before finally succumbing to Zone's Wide Slice Chop, which decapitated him. Gelderah's back spines are also harder than diamond.[3]


Main article: Gelderah/Gallery.


This is a list of references for Gelderah. These citations are used to identify the reliable sources on which this article is based. These references appear inside articles in the form of superscript numbers, which look like this: [1]

  1. 1.0 1.1 Matsui, Satoshi, ed. (28 July 2014). Toho Special Effects All Monster Encyclopedia. Shogakukan. p. 135. ISBN 978-4-09-682090-2.
  2. 2.0 2.1 Ballard, Jim M. (14 November 2009). "ZONE FIGHTER Series Guide". SciFi Japan. Archived from the original on 1 March 2021.
  3. 3.0 3.1 3.2 Sakai, Yukio, ed. (24 March 1990). All Kaiju Kaijin (First Volume). Keibunsha. p. 210. ISBN 4-7669-0962-3.


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