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Home world: Planet Earth (Cosmos Universe)
First appearance: Ultraman Cosmos Episode 1: "Reunion with the Light" (2001)
Latest appearance: Shin Ultraman Retsuden Episode 33: "Ultraman Saga Chapter 5: The True Fight" (2014)
Height: 48 m (Normal)
50 m (Chaos)
Weight: 58, 000 t (Normal)
60, 000 t (Chaos)
Category: Kaiju
Affiliation: Chaos Header (unwillingly)

Golmede (Natural Enemy)

Roar(s): TBA

Lidorias (リドリアス Ridoriasu?) is a monster that appeared in the TV series, Ultraman Cosmos. She appeared in episode 1, 2, 7, 30, 32, 55, and 65. After being infected, she became Chaos Lidorias (カオスリドリアス Kaosuridoriasu?).

Subtitle: Friendly Giant Bird (友好巨鳥 Yūkō Kyodaina tori?)


Ultraman CosmosEdit

Episode 1 Edit

Lidorias was a peaceful monster that lived on Earth that was acquainted with humanity as she was the first monster to live on Kapuya Island, where she was given company by Musashi Haruno and the island's kind owner. Once Chaos Organism invaded Earth, the entity set its sights on Lidorias as their first host. Infecting Lidorias, the peaceful monster became more violent, attacking its visitors as it tried to fight Chaos Organism's influence. Unfortunately Chaos Organism succeeded in taking over Lidorias's mind and body, transforming her into Chaos Lidorias. Luckily Ultraman Cosmos arrived for the first time and fought Chaos Lidorias. After using the Reverse Spike on him after Lidorias fired his energy beam, Cosmos used his Luna Through Eye to see the Chaos Organism possesaing Lidorias.He managed to purify the Chaos within Chaos Lidorias with the Luna Extract, transforming her back to her original peaceful form.

Afterwards, Lidorias began to aid EYES and Musashi in the monster sighting which involved Chaos Organism. She reappeared in the 2nd episode where she saved Musashi and assisted EYES in battling against Golmede, but she could only do so much before Golmede gained the upperhand in combat until Cosmos arrived to stop Golmede himself.

When Chaos Organism returned and took on the form of Chaos Header Mebut, Lidoras arrived to again save Musashi (whom had been separated from Cosmos after his previous battle with Chaos Header) and assisted EYES in stopping the Chaos threat yet again. When she was able to better resist the Chaos's influence, she was no match for Chaos Header Mebut's brute strength and was taken down with ease by the sadistic lifeform. Once Ultraman Cosmos and Musashi rejoined and acquired his new Eclipse Mode and was beating Chaos Header with ease, Chaos Header Mebut desperately used Lidoras as a shield to protect him from Cosmos. Thanks to Lidorias's already purifyed body, Cosmos's Cosmium Beam phased through Lidorias's body, unharming her but destroying Chaos Header Mebut.

Lidoras (as well as Bolgils and Mogrudon,) would appear one last time in the series, helping Ultraman Cosmos and EYES in stopping Chaos Organism's final form: Chaos Darkness. When Ultraman Cosmos and Musashi were separated again, Lidorias, Bolgils, and Mogrudon used their cries to weaken Chaos Organism's long enough for Musashi and Cosmos to rejoin in order to purify Chaos once and for all.

Ultraman Cosmos vs. Ultraman Justice: The Final BattleEdit

Lidorias would later be seen in the film, Ultraman Cosmos Vs Ultraman Justice: The Final Battle where she would team up with Golmede, Bolgils, and Don Ron in battling against the Gloker armies. At first the monsters had the upperhand in taking down the Gloker Pawns, but were soon beaten and driven off once the Glokers transformed into Gloker Rook.

Ultraman SagaEdit

Lidorias reappeared in a flashback segment to the film, Ultraman Saga.

Although not physically playing a role in the film, Musashi Haruno narrates a story to several children taking refuge at Team U's base of a long ago visit to Planet Juran, where several Lidorases, large and small, are seen along with several other monsters. Later in a post-credits scene, they are seen again on Juran as the monsters gather together to watch the sunset by a cliff.

Ultraman Orb: The Origin SagaEdit

Lidorias reappeared in episode 3 of the series. Two Lidorias make a cameo flying across Planet Juran, while Bolgils grazed below.


  • Suit Actor: Toshio Miyake.
  • Lidorias is based on the monster Litra from Ultra Q.
  • Lidorias' suit would later used to create Halen and Flygler.
    • The Flyger suit would later be remodified back into Lidorias for her appearance in Ultraman Saga and Ultraman Orb: The Origin Saga.
  • In a certain stage show, Ultraman Belial used his Kaiser Belial Claws to turn her back into Chaos Lidorias.




  • Height: 48 m
  • Weight: 58, 000 t
  • Origin: Kapuya Island


  • Flight: With the help of her retractable wings, Lidorias is capable of flight.
  • Energy Beam: Lidorias can fire a light blue beam of energy from her beak.
  • Sense: Lidorias can actually sense Musashi when he was in trouble either in both human and Ultraman Cosmos due to her strong connection with him.
  • Antibody: After being infected once with the Chaos Header, her immune system developed causing her to no longer becoming a victim of Chaos Header.

Chaos Lidorias
Chaos lidorias


  • Height: 50 m
  • Weight: 60,000 t


  • Flight: Like her original form, Chaos Lidorias is capable of flight thanks to her retractable wings
  • Energy Stream: Chaos Lidorias can fire a stream light blue beam of energy from her beak, slightly stronger than her original beam though easily outsmarted by Cosmos.
  • Claws: In place of Lidorias' hands are whip-like claws.

Figure Release InformationEdit




อุลตร้าแมน คอสมอส VS Chaos Lidorias (ตอนที่ 1 Cut)02:44

อุลตร้าแมน คอสมอส VS Chaos Lidorias (ตอนที่ 1 Cut)

Ultraman Cosmos Kaiju & Seijin
Ultraman Cosmos: The First Contact Basical Baltan | Don Ron |Clevergon | Alien Baltan (Basical, Shirubyi)
Ultraman Cosmos Chaos Header | Lidorias | Chaos Lidorias | Golmede | Chaos Golmede | Spittle | Igomas | Chaos Bug | Mogrudon | Mienin | Gamoran | Small Inculas | Inculas | Yamawarawa | Geshot | Mudon | Ephemera | Waroga | Galbas | Jelga | Jirak | Chaos Jirak | Gigi | Renki | Alien Migelon | Angrilla | Bolgils | Parastan | Chaos Parastan | Chaos Parastan S | Gelworm M | Gelworm P | Imitation Ultraman Cosmos | Gragas | Alien Srayu | Guinje | Chaos Header Iblis | Zaranga | Baby Zaranga | Eligal | Chaos Eligal | Chaos Header Mebut | Clevergon | Chaos Clevergon | Golmede Beta | Neldorand | Chaos Neldorand | Reycura | Ragstone | Mahagenom | Taildas | Chaos Taildas | Alien Beryl | Hellzking | Neldorand II | Chaos Neldorand II | Puratea | Exter Raider | Sydevakter | Delgoran | Chaos Delgoran | Sol | Taildas Mechalator | Alien Nowar | Neldorand Mechalator | Gigi Dr. XX01 | Mugera | Alien Kyulia | GiriBanes | Waroga II | Alukela | Snowstar | Vadata | Mazalgas | Chaos Mazalgas | Sangelu | Alien Carpcis | Arados | Ragstone Mechalator | Tablis | Mitoru | Gamoran II | Kawanoji | Gruanfan | Giragas | Hellzking Revised | Dolba | Chaos Dolba | Eligal II | Chaos Eligal II | Chaos Darkness
Ultraman Cosmos 2: The Blue Planet Parastan | Scorpiss | Sandros | Reija | Alien Gyashi | Shirubyi
Ultraman Cosmos vs. Ultraman Justice: The Final Battle Gloker Pawn | Gloker Mother | Mienin | Lidorias | Golmede | Don Ron | Bolgils | Gloker Rook | Gloker Bishop | Alien Gyashi | Shirubyi | Giga Endra | Delaxion

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