Alguros (アルギュロス Arugyurosu) is a metal organism that first appeared in episode 16 of Ultraman Gaia.
Subtitle: Metal Organism (金属生命体 Kinzoku Seimei-tai)
History
Ultraman Gaia
Alguros, like Apatee, is a Metal Organism created by the Radical Destruction Bringer to bring destruction to Earth and humanity, but this time, Alguros was made for another purpose: destroy the "Place of Agul", which also serves as Hiroya Fujimiya's power source. After appearing from space in the form of huge metal spikes, Alguros quickly formed himself and began to proceed to the "place". However, Ultraman Agul appeared to defend his sanctuary, but was quickly outmatched by Alguros due to his shapeshifting abilities. XIG began to attack the metal being, distracting him, while Agul began to attack with Liquidators, but many almost hit the XIG Fighters themselves. Soon Alguros retreated. Later on, Alguros reappeared and began to attack the "place" with his cannon. Agul was called upon once again, and the two fought to a standstill until Alguros transformed into a copy of Ultraman Agul himself.
As Alguros transformed into Imit-Ultraman Agul, the real Ultra could only watch in shock. However, the fake imitator quickly deleted the pause by punching the Ultra in the face. After suffering many blows, Gamu decided to call upon Gaia, but was halted by Agul. Suddenly, the giant of the ocean spun into the air and crashed upon the fake. Then he rained the imitation with many blows, but was halted when Alguros launched Liquidators at him. Undeterred, Agul and the imitation had a duel of Photon Crushers. But Agul's was obviously more powerful and destroyed the fake easily.
Trivia
- Alguros uses exactly the same sound effects as Apatee.
- Alguros' roar is an extremely low pitched Apatee roar.
- Alguros's grunts are low-pitch version of Ultraman Agul's.
- Alguros' sinister smile as Imit-Ultraman Agul mimics the smile of Zeluganoid. This made Alguros as Imit-Ultraman Agul is the second Imitation Ultras to display facial expressions while fighting with the real Ultra, with the first one was Terranoid/Zeluganoid.
Data

- Stats
- Height: 52.5 m
- Weight: 52,500 t
- Origin: Space
- Powers and Weapons
- Shapeshifting Metal (形状変化金属 Keijō Henka Kinzoku): Although his body is made of solid steel, Alguros can shapeshift at will.
- Spikes: Alguros can shapeshift his body into spikes, just like Apatee.
- MetamorArm (メタモルアーム Metamoru Āmu): Alguros can change its hands into weapons.
- Blaster Cannon: Alguros can shapeshift his right arm into a cannon.
- Blade: Alguros can shapeshift his left arm into a blade.
- Imit-Ultraman Agul: Alguros can shapeshift himself into a duplicate of Ultraman Agul with exactly the same ability at the same power level.
- Resistance: Much like Apatee, Alguros can resist weaker attacks such as liquidators.

- Stats
- Height: 50 m
- Weight: 46,000 t
- Origin: Near Fujimiya's lab
- Powers and Weapons
- Liquidator: Imit-Ultraman Agul can use Liquidators just like Ultraman Agul. However, his are considerably weaker.
- Photon Crusher: Imit-Ultraman Agul can use the Photon Crusher just like Ultraman Agul. However, it pales in comparison to the real one and is considerably weaker.

Imitation Ultraman 80
Imitation Ultraman 80 (にせウルトラマン80 Nise Urutoraman 80) is a fake version of Ultraman 80 that appears alongside Ultraman Boy. However, not much to be known about him at this time.
- Stats
- Height: TBA
- Weight: TBA
- Origin: TBA
- Powers and Weapons
- None demonstrated

Imitation Zoffy
Imitation Zoffy (ニセゾフィー Nise Zofī) is a fake version of Zoffy that appears in episode 255 of Ultraman Boy's Ultra Coliseum. In the episode Imitation Zoffy and the Kaiju Blackium face off against Ultraman Leo and the real Zoffy. In the end Imitation Zoffy and Blackium are swiftly defeated through the combined power of Leo and Zoffy. The appearance of Imitation Zoffy doesn't differ from that of the real Zoffy.
- Stats
- Height: TBA
- Weight: TBA
- Origin: TBA
- Powers and Weapons
- None demonstrated
Merchandise
Ultra Hero Series

Photo courtesy of Monsters-Empire
- Imit-Ultraman Agul (Ultra Hero Series, 1998)
- Release Date: 1998
- Materials: ATBC-PVC
- JAN/ISBN: 4902425725567
- A figure of Alguros' Ultraman Agul disguise is first released as an Ultra Hero Series figure, being a redeco of the original Ultraman Agul mold. The figure replaces the eye's yellow with reddish pink, and the black paint with gunmetal.
- Imit-Ultraman Agul is released in a monochromed Ultra Hero Series packaging, without any ID Number.

- Imit-Ultraman Agul (Ultra Hero Series, 2002)
- Release Date: 2002 (2nd)
- ID Number: EX
- JAN/ISBN:
- Materials: PVC
- in 2002, the figure was reissued for the 2000 Ultra Hero Series lineup, with minor changes on the eyes, painted with a dash of white on the reddish pink to represent the reflection of the lighting on the eyes. The blue color in this figure had a matte finish, as the original ATBC-PVC material was replaced into PVC.
Play Hero VS Series

- Play Hero VS Ultraman Duel Set[sic] (2003)
- Release Date: July 2003
- JAN/ISBN: 4543112083319
- Materials: PVC
- A smaller version of Alguros' original form is also available as part of the Play Hero VS lineup, bundled with Ultraman Agul.
- The packaging art with Alguros and Agul contains the two figures.