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"Stop being selfish, you guys were the one who lured this monster!"

Hideki Go, The Monster User and the Boy.

Muruchi (ムルチ) is a fish-like Kaiju that debuted in episode 33 of the TV series Return of Ultraman.

Subtitle: Giant-fish Monster (巨大魚怪獣 Kyodai-gyo Kaijū)



Muruchi's name comes from the Japanese pork dish Inamuruchi.

The "Zoa" in Zoa Muruchi's name means "Hate" in the Alien Mate's language, hence Bio's hatred against Earth for his father's death.


Muruchi's head design is based on a salmon. Muruchi features some elements of his design in common with male salmonids (fish in the salmon family, including salmon, trout, grayling and char), such as his long jaw and hooked kype.


Return of Ultraman

Muruchi in Return of Ultraman

The first Muruchi was originally seen chasing after Ryo Sakuma at the beginning of the episode, until encountered and sealed underground by an Alien Mates, who would later adopt the boy. However, Alien Mates was tragically shot and killed by a police officer in an angry mob (who were trying to kill the boy too,) Muruchi arose from underground and caused havoc. Believing that those people who were responsible for the innocent alien's murder, Go initially refused to transform into Ultraman Jack and let the villagers reap for their sins, but he eventually did under the persuasion of Captain Ibuki. He and Muruchi fought in a local refinery plant until he destroyed Muruchi with a single use of the Spacium Beam. The Monster User and the Boy


Ultraman Ace

Muruchi II, as seen in Ultraman Ace

Muruchi reappeared in Ultraman Ace, episodes 7 and 8 "Kaiju vs. Terrible-Monster vs. Alien" and "Life of the Sun, Life of Ace", as Muruchi Ⅱ (ムルチ二代目 Muruchi Nisei).

A second Muruchi appeared in the middle of a battle between Ultraman Ace, Doragory, and Alien Metron Jr., joining the fray and attacked Ace along with the Terrible-Monster and his master. Despite intending to help the others, Muruchi II's appearance was short-lived. Muruchi II picked up Ace and threw him to the ground, but then tripped and accidentally rammed into Doragory. Doragory angrily attacked Muruchi II, viciously killing the monster by tearing off his lower jaw and his left leg.


  • Muruchi II is very thin compared to the first generation, he is colored more silver, and the tip of the tail is shaped like a tail fin of a fish.
  • Muruchi II's sudden appearance in the series has caused some confusion as to how or why he appeared. Some believe that this Muruchi was in fact the original, having survived his fight with Ultraman Jack, and was disturbed by Ultraman Ace's battle.
    • However the Ultraman Encyclopedia states that Muruchi II is actually the son of the first, theorizing that the first Muruchi might had laid an egg sometime before he fought Jack.
  • Seagorath was originally intended to appear in Muruchi's place, but was changed for unclear reasons.
  • The Muruchi II costume is actually an altered first generation Muruchi costume. It was used in other works over the years and became too battered to be used any futher, which is why the developers decided to have Muruchi II ripped apart by Doragory in the screen play.

Ultraman Mebius

Zoa Muruchi

Zoa Muruchi (ゾアムルチ Zoa Muruchi) was originally a normal Muruchi being enhanced through biological remodeling when Bio sneaked into Earth in the early years when defense forces was very weak.

Zoa Muruchi was created by Bio, the son of the original Alien Mates (from Return of Ultraman), but this time as a means of vengeance against the humans for killing his father. And then Bio unleashed Zoa Muruchi to destroy the nearby city. While Zoa Muruchi and Ultraman Mebius fought, Bio met a woman, a principal of a kindergarten, who tells him that she knew the boy whom the elder Bio's father had adopted. After learning of a tragic story about his adopted brother's efforts to find the his father's UFO, Bio found reason to forgive the humans, however he had created Zoa Mururchi as the embodiment of his hatred towards the humans. Overcome with grief, but wanted to believe in human kindness again, Bio then called out to Mebius to end his hatred by destroying Zoa Muruchi. Mebius used the Mebium Shoot, and destroyed Zoa Muruchi, after it let out one last anguish-filled cry, ending the suffering the human disguised Mates had gone through. The Monster Master's Legacy


  • Zoa Muruchi's design is more streamlined than the normal Muruchi and they have a cluster of blue spots on their belly, as well as yellow highlights on the fins.
    • Despite being different variants, Zoa Muruchi's suit is used to represent the normal Muruchi in modern recreations of the scenes from Return of Ultraman episode 33.

Ultra Galaxy Mega Monster Battle

Zoa Muruchi, as seen in Ultra Galaxy Mega Monster Battle

Muruchi reappeared in episode 9 of Ultra Galaxy Mega Monster Battle, again as Zoa Muruchi.

Confronting the ZAP SPACY underwater (after King Joe Black shot the Pendragon down into the ocean) Zoa Muruchi was attracted by a sonar frequency that the ZAP SPACY had created to scare away a group of Arigeras. Threatened by the imposing monster, Rei sent out Eleking to battle it, as Gomora was not as adept at fighting underwater. The battle went back and forth, but eventually, Eleking's electric attacks proved too strong, and Zoa Muruchi was destroyed by his electric tail shock.


Mega Monster Battle: Ultra Galaxy Legends The Movie

Zoa Muruchi working together with Telesdon, Temperor, and Hipporit

Zoa Muruchi reappeared in the movie Mega Monster Battle: Ultra Galaxy Legends The Movie as one of Ultraman Belial's 100 Monster Army. He was first seen as a spirit in a shot of the Monster Graveyard along with Hoe, King Pandon, Fire Golza, and Froguros. He then teamed up with Telesdon, Arstron, Alien Hipporit, and Alien Temperor to fight Gomora and was later killed by Ultraman Mebius' Mebium Shoot.


New Ultraman Retsuden

He makes an apperance in New Ultraman Retsuden episode 8 as Muruchi II. His appearence is referenced by Alien Valky as he explains Doragory's battle in Ultraman Ace.

Ultraman Ginga

Muruchi, as Zoa Muruchi, appears as a Spark Doll. He and several monsters cheer on Ultraman Ginga as he fights Dark Galberos. The Closed World

After Ultraman Ginga defeated Dark Lugiel, it is most likely that Zoa Muruchi returned to Alien Mates' planet. Your Future

Ultraman Ginga Theater Special: Ultra Monster ☆ Hero Battle Royale!

Zoa Muruchi being Ultlived

Zoa Muruchi returned in the second movie special. He was the second monster to be Ultlived by the Livepad and the first one by Hikaru Raido. He went up against Doragory but he knocked him down immediately. After he got back up, he along with Zetton were defeated by one slash of Zamsher's katana. Ultraman Ginga Theater Special: Ultra Monster ☆ Hero Battle Royale!

Ultraman Ginga S

Muruchi fights off Jace and Ultraman Victory in Ultraman Ginga S.

Zoa Muruchi appeared in episode twelve of Ultraman Ginga S, where he was Monslived by Alien Guts Vorst to attack Chigusa Kuno and Alien Metron Jace. Metron grew to the monster's size but before he can strike, Muruchi fired his Energy Beam at him and he was struck down. Ultraman Victory and Ultraman Ginga appeared to assist him but they could only accomplish so much. They only distracted and held off but Muruchi only wanted to put the hurt on Metron Jace. When the alien started dancing with his lighters, thanks to Chigusa's singing, Muruchi became distracted by the alien's singing and dancing and, as a result, got blown up by a combination of Victory's Victorium Shoot and Ginga Strium's Ultra Shot.


  • The long take and cut of the battle scene at the rugged oil tanks, might possibly be paying tribute to the original Muruchi's battle against Ultraman Jack.
  • This is the final appearance of Zoa Muruchi's suit. Two years later in Ultraman Orb, Zoa Muruchi was modified into Maga-Jappa. However, a cheaper suit still exists for stage show events.

Ultraman Taiga

"A trump card needs to be saved for the last, Ares. Now throw down your weapons. That kid's life depends on you."

―Imbiza to Ares.

As recalled in Ultraman Taiga's past, a modified variant called Re-Muruchi (改造ムルチ Kaizō Muruchi) was one of the members of Gua Army's Mechanized Monster Army under Imbiza's leadership. While Imbiza launched his army against Andro Ares on Planet Maijii, Re-Muruchi was kept hidden under the sea to capture Taiga and used the young Ultra as a leverage to force Ares into surrendering himself. Outraged by Imbiza's use of dirty tactic, Taiga mustered all of his strength to escape and toss his captor in mid-air before punching through the monster's gut, giving Ares the opportunity to deliver his counterattack on the Battle Captain himself. For Whom Is That Fist For - Part 2


  • Modified Muruchi's death maybe a reference to its Ace incarnation who teamed up with Doragory, the latter's defeat also having a hole punched through it.


Muruchi Ⅰ


  • Height: 48 m
  • Weight: 10,000 t
  • Tail Length: 50 m
  • Origin: Underground
Powers and ​Weapons
  • Heat Ray: Muruchi can fire a flame-like, missile-strength heat ray of yellow energy from his mouth. Medium in strength, this ray can cause small explosions.
  • Burrowing: Muruchi can burrow at low speeds.

Muruchi II

Muruchi II

  • Height: 48 m
  • Weight: 10,000 t
  • Tail Length: Unknown
  • Origin: Underground
Powers and ​Weapons
  • Burrowing: Muruchi II can burrow.
    • Smokescreen: Before Muruchi II reveals itself, he unleashes a mist to cover the area.

Zoa Muruchi

Zoa Muruchi

  • Height: 48 m
  • Weight: 10,000 t
  • Origin: Planet Mates (Ultraman Mebius), Unknown, most likely called from Mates by Bullton (Ultra Galaxy Mega Monster Battle)
  • Attack: 800
  • Defense: 800
  • Speed: 700
Powers and ​Weapons
  • Energy Beam: Zoa Muruchi can emit and then launch a missile-strength beam of blue energy from his mouth. This beam is relatively powerful, capable of covering whatever it hits in a series of explosions and rivals Eleking's electric discs in power.
  • Underwater Adaption: Zoa Muruchi can easily maneuver and fight underwater.

Other Media

Kagayake Ultra no Hoshi

In the non-canon manga Kagayake Ultra no Hoshi, a Muruchi was one of the many monsters under Giant Yapool's command to fight against Ace in Shikoku, Japan.


Main article: Muruchi/Merchandise

The first known figure of Muruchi was created by Popy in 1978 as part of the "King Zaurus" toyline. It has about four to five rotating parts, and its design is relatively show-accurate. However, being an older figure, its paint job isn't incredibly accurate to the costume seen in the show, painted with mostly red as well as some yellow and green around the body. The figure stands at approximately 6-7 inches in height.

A figure of Muruchi II was created by Marmit in 2010. It's estimated to have six rotating parts and it is highly show-accurate when compared to the original. The figure is approximately 9 inches in height.

In more recent years, a figure of Zoa Muruchi was released as part of the Ultra Monster 500 series. The figure has three rotating parts and has a somewhat show-accurate paint job, however, its appearance lacks certain details that are noticeable in the show. The figure is # 38 in the series and stands at 5 inches in height.

Return of Ultraman Kaiju
Takkong | Zazahn | Arstron | Sadola | Detton | Kingsaurus III | Gudon | Twin Tail | Gorbagos | Ghostron | Dangar | Stegon | Mognezun | Shugaron | Seamons | Seagorath | Eledortus | Terochilus | Bemstar | Sartan | Magnedon | Beacon | Gokinezula | Zanika | Vacuumon | Kupukupu | Kingstron | Zagoras | Nokogilin | Gronken | Varricane | Yadokarin | Oxter | Plooma | Alien Zelan | King Maimai | Alien Mates | Muruchi | Leogon | Pris-Ma | Draculas | Re-Seagorath | Re-Bemstar | Black King | Alien Nackle | Alien Varduck | Alien Black | Snowgon | Alien Baltan Jr. | Builgamo | Alien Stora | Paragon | Alien Grotes | Kodaigon | Granadas | Alien Centaurus | Robonez | Alien Cygnus-61 | Alien Messie | Alien Zoole | Red Killer | Femigon | Yametaranese | Sasahiller | Alien Ateria | Alien Mysteler | King Bockle | Alien Bat | Zetton II
Ultraman Ace Kaiju
Verokron | Yapool | Chameleking | Vakishim | Garan | Aribunta | Giron Man | Brocken | Alien Metron Jr. | Doragory | Muruchi II | Gammas | Zaigon | Alien Antira | Unitang | Sabotendar | Baraba | Ace Killer | Ace Robot | King Crab | Cattle God | Cowra | She-Devil | Hotarunga | Black Pigeon | Android Couple | King Kappa | Zemistlar | Aprasar | Aprasar Fairy | Space Mask | Black Satan | Giant Yapool | Mazaron Man | Yojo | Mazarius | Alien Orion | Sphinx | Alien Hipporit | Lunaticks | Undergroundmon | Gitagitanga | Red Jack | Baktari | Coakes | Bad Baalon | Kaiteigagan | Dreamgillas | Soundgillar | Machless | Snowgiran | Namahage | Alien Fire | Firemons | Alien Steal | Kaimanda | Shishigoran | Iceron | Woo II | Fubugirara | Onidevil | Gasgegon | Daidarahoshi | Hanzagiran | Verokron II | Yapool Woman | Univerlages | Aquarius | Alien Revole | Signalion | Geegon | Alien Simon | Jumbo King
Ultraman Mebius Kaiju
Ultraman Mebius Dinozaur | Gudon | Birdon | Miclas | Kelbim | Dinozaur II | Sadola | Twin Tail | Bogarl | Lim Eleking | Alien Fanton | C-Pin 929 | Bogarlmons | Dinozaur III | Windom | Dinozaur Reverse | Kodaigon | Mukadender | Insectus | Gromite | Zamsher | Alien Magma | Alien Valky | Saramandora | Bemstar | Daigarugu | Arstron | Kelbim II | Lesser Bogarl | Chronorm | Alien Angel | Yapool | Fire Windom | Vakishim | Doragory | Verokron | Maquette Zetton | Ultraman Mebius (Maquette) | Nova | Maquette Nova | Inpelaizer | Roberuga | Alien Mates | Zoa Muruchi | Femigon | Alien Reflect | Alien Babarue | Angross | Alien Psychokino | Jasyuline | Arigera | Alien Serpent | Sorichra | Sorichran | Roberuga II | Hoe | Gomora IV | Mysterious Saucer fleet | Gadiba | Red King | Gomora Alpha | Mebius Killer | Giant Yapool | Alien Deathre Deathrem | Lunaticks | Alien Groza Grozam | Alien Mefilas III | Gromite II | Mass-Produced Inpelaizer | Alien Empera
Ultraman Mebius Gaiden: Hikari Saga Arb | Bogarl | Bemstar | Alien Babarue
Ultraman Mebius & the Ultra Brothers U-Killersaurus | Yapool | Alien Temperor | Alien Zarab | Alien Guts | Alien Nackle | U-Killersaurus Neo
Ultraman Mebius Gaiden: Armored Darkness Saramandora | Mukadender | Roberuga | Kelbim | Armored Darkness
Great Decisive Battle! The Super 8 Ultra Brothers King Guesra | King Pandon | King Silvergon | King Goldras | Alien Super Hipporit | Giga Khimaira | Black Silhouette
Ultraman Mebius Gaiden: Ghost Rebirth Mechazam | Inpelaizer | Alien Mefilas III | Alien Groza Grozam | Alien Deathre Deathrem | Mebius Killer | EX Zetton | Ghost Rebirth
Ultraman Mebius: Anderes Horizont Alien Mates Bio | Matsue | Alien Serpent | Naga | Alien Shaplay | Albino Giradorus | Usual | Shaplay Beast
Ultra Galaxy Kaiju
Ultra Galaxy Mega Monster Battle Telesdon | Sadola | Red King | Rei's Gomora | Rei's Litra (S) | Juran | Golza | Gudon | Neronga | Bemstar | Fire Litra | Fire Golza | Gan-Q | Banpira | Twin Tail | Froguros (B) | Bullton | Kelbim | Arstron | Eleking | Gromite | Angross | Arigera | Zoa Muruchi | Nova | Saramandora | Lunaticks | King Joe Black | Verokron | Doragory | Kate | Zetton | Reimon | EX Gomora
Ultra Galaxy Mega Monster Battle: Never Ending Odyssey Alien Pitt | Reionics Hunter | Gomess (S) | Magular | Rei's Gomora | Dorako | Eleking |Alien Hook | Rei's Litra (S) | Alien Guts | Alien Zelan | Arstron | Alien Nackle | Galberos | Illusion Zetton | Reimon Burst Mode | Reionic Burst Gomora | Doragory | Alien Metron | Bemstar | Alien Babarue (RB) | Antlar | Vakishim | Alien Keel Grande | Tyrant | Kate | Fire Litra | Alien Zarab | Imitation Ultraman | Alien Mefilas | Armored Mefilas | Dada | Alien Temperor | Arigera | Armored Darkness | Miclas | Alien Zetton | Telesdon | King Joe Black | Kelbim | Red King | Alien Reflect | Birdon | King Joe Scarlet | Alien Reiblood | EX Gomora | EX Red King
Mega Monster Battle: Ultra Galaxy Legends The Movie Bemular | Alien Zarab | Zaragas | Rei's Gomora | Dorako | Bemstar | Saramandora | Alien Shaplay | Windom | Miclas | Agira | Pigmon | Black King | Rei's Litra (S) | Gomess (S) | Alien Baltan | Antlar | Red King | Magular | Telesdon | Dada | Zetton | Eleking | Alien Metron | Alien Guts | Arstron | Sadola | Gudon | Twin Tail | Alien Nackle | Verokron | Vakishim | Doragory | Lunaticks | Birdon | Mukadender | Alien Temperor | Tyrant | Alien Valky | Alien Magma | Alien Pressure | Alien Babarue | Nova | Hoe | Fire Golza | Gan-Q | Galberos | Froguros (B) | Banpira | Kelbim | Gromite | Zoa Muruchi | Alien Reflect | Angross | Jasyuline | Arigera | Roberuga II | King Joe Black | Alien Super Hipporit | King Silvergon | King Goldras | King Pandon | King Guesra | Alien Zetton | Nurse | Belyudra
Ultra Galaxy Legend Gaiden: Ultraman Zero vs. Darklops Zero Rei's Gomora | Rei's Litra (S) | Darklops Zero | Mecha Gomora | Alien Salome | Imitation Ultraseven | Imitation Ultraman (SR) | Imitation Ultraman Jack (SR) | Imitation Ultraman Ace (SR) | Imitation Zoffy (SR)
Mega Monster Battle: Ultra Adventure Bullton | Gomora | Pigmon | Red King | Alien Pedan | Alien Hipporit | Bemular | Golza | Gan-Q | Sadola | Skydon | Mons-Ahgar | Telesdon | Gamakugira | Alien Nackle | Yapool | EX Tyrant | Alien Keel Vittorio | EX Gomora | Alien Zarab | EX Eleking | Alien Metron | EX Red King | Alien Babarue | King of Mons | Basiliss | Baby Arados | Alien Reiblood | Grand King | Silverbloome | Deathfacer
Mega Monster Battle: Ultra Adventure NEO Kyrieloid | Kanegon | Red King | Agira | Vittorio | Alien Guts | Gatanothor | EX Zetton | Alien Reiblood | Kate
Ultraman Ginga Kaiju
Ultraman Ginga Alien Valky | Black King | Thunder Darambia | Kemur | King Pandon | Ragon | Doragory | Alien Nackle Gray | Dark Galberos | Zaragas | Red King | Antlar | Jasyuline | Super Grand King | Dark Lugiel
Ultraman Ginga Theater Special Alien Icarus | Tyrant
Ultraman Ginga Theater Special: Ultra Monster ☆ Hero Battle Royale! Kanegon | Alien Baltan | Red King | EX Red King | Telesdon | Dorako | Gomora | Reionic Burst Gomora | EX Gomora | Mecha Gomora | Zetton | Miclas | Snowgon | Yametaranese | Alien Miracle | Mochiron | Alien Akumania | Evil Tiga | Gan-Q | Chaos Ultraman | Zamsher | Zoa Muruchi | Chaos Ultraman | Chaosroid S | Chaosroid T | Chaosroid U
Ultraman Ginga EX Alien Magma | Zetton
Mountain Peanuts Detton | Jamila | Nosferu | Android One Zero
Ultraman Ginga S Victorian | Alien Chibull Exceller | Android One Zero | Chiburoid | Shepherdon | EX Red King | Eleking | Alien Guts Vorst | Inpelaizer | King Joe Custom | Sadola | Gudon | Yapool | Vakishim | Gomora | Fire Golza | Gan-Q | Five King | Bemular | Bemstar | Doragory | Verokron | Alien Akumania Muerte | Alien Metron Jace | Zoa Muruchi | Birdon | Alien Zetton Berume | Hyper Zetton | Vict Lugiel | Alien Valky | Alien Nackle Gray | Alien Icarus
Ultraman Ginga S The Movie: Showdown! The 10 Ultra Warriors! Etelgar | Five King | Alien Sran | Alien Empera | Dark Lugiel
Ultra Fight Victory Aribunta | Giant Yapool | Ace Killer | Victory Killer | Verokron | Vakishim | Doragory | Lunaticks | Shepherdon | Juda Spectre | Super Grand King Spectre
Ultraman Taiga Kaiju
Ultraman Taiga Alien Rivers Kawazu | Homare Soya | Alien Ckalutch | Cicada Human | Alien Magma Maguma | Baby Zandrias | Zegun | Young Mother Zandrias | Alien Markind Markind | Hellberus | Baby Guesra Chibisuke | Lecuum | King Guesra Chibisuke | Galactron MK2 | Darebolic (MB) | Alien Fanton | Alien Zetton Zolin | Volk | Alien Serpent | Galmess | Hupnath | Alien Pedan | Chiburoid | Alien Seger Aoi | Segmeger | Alien Damara | Alien Gapiya Abel | Cicada Girl | Alien Perolynga | Alien Babarue | Alien Hook | Night Fang | Majappa | Maiko Namekata | Alien Keel | Hupnath | Alien Nackle Odyssa | Black King | Maria | Alien Zelan Oshoro | Pagos | Gymaira | Ilt | Gigadelos | Lunah | Alien Galo | Dethmon | Purana | Baby Samekujira | Lim Eleking | Baby Vadata | Alien Chibull Mabuze | Skull Gomora | Alien Semon Meed | Demaaga | Bemular | Alien Bat Seiji Komori | Alien Pitt Hitomi Mizuno | Zetton | Gorothunder | Alien Haze Mystie | Alien Bado El-Ray | Aribunta | Pandon | Alien Ghose | Takkong | Shinji | Giestron | Alien Godola | Alien Sran | Alien Zarab | Woola
Ultraman Taiga The Movie: New Generation Climax Grimdo | Dada | Alien Magma Maguma | Alien Markind Markind | Legionoid Dada Customize | Alien Keel | Alien Serpent | Lecuum | Alien Fanton | Alien Zelan | Alien Ckalutch | Alien Bado | Alien Shaplay | Alien Groza | Hellberus | Segmeger | Night Fang | Gigadelos | Gorothunder
Tri-Squad VoiceDrama Kishiader | Gerg | Imbiza | Re-Brocken | Mecha Birdon | Dakumiran | Zabiden | Bazelia | Re-Zaragas | Re-Alien Iyros | Re-Beacon | Re-Muruchi | Pestria | Paraidar | Dairaoh | Ilia | Alien Godmes
Tregear's Story/Blue Shadow Gagoze | Snark | Murnau | Leugocyte | Greeza | Alien Pegassa Pega | Snake Darkness