Reigubas (レイキュバス Reikyubasu), also called "Reyvcus" in the English dub and "Reicubas" (video game exclusive), was a fiddler crab-themed kaiju that worked with Spume and the Digons in Ultraman Dyna.

Subtitle: Space Sea Beast (宇宙海獣 Uchū Umijū)


Ultraman Dyna

Reigubas was, like Monsarger, a biological weapon, but this time used by Spume. Reigubas was released just as Dyna appeared to rescue to moving base from Spume. After a short battle, Reigubas and Dyna emerged onto the surface of Antarctica and began a new confrontation. However, Dyna was weakened by the cold and was also distracted by Spume's threats of crashing the Man-Made Sun onto Earth. Reigubas quickly gained the advantage and froze Dyna, causing Asuka to fall into a unconscious state from the cold and Dyna's color timer to blink. Super GUTS arrived and Reigubas immedietly began to shoot fireballs at the fighters, but was tricked by Captain Hibiki in the GUTS Eagle Beta to launch a fireball at the frozen Dyna, melting his imprisonment. Dyna then transformed into Miracle Type and fled the site, rushing towards to Man-Made Sun and launching a beam at it, reactivating the sun and freeing it of Spume's control. Dyna became re-energized and used his Spin Slam to attack Reigubas while falling from the sky. Just as Reigubas tried to freeze Dyna again, Dyna unleashed his Revolium Wave Attack Type and sent Reigubas to an alternate dimension.


  • Suit Actor: Toshio Miyake
  • Reigubas was the first monster to defeat Ultraman Dyna in battle.
  • Reigubas is one of the playable characters in Ultraman Fighting Evolution 3. He also can Type Change, where each type has a different special attack.
  • In MUGEN and Taiketsu! Ultra Hero, Reigubas's pincers is reverse. Where his big pincer in left hand and the small pincer in right hand, while the real one is reverse.
  • These episodes were featured in New Ultraman Retsuden episode 82 "Dyna Defeated!? The Kraakov Will Not Surface!".

Ultraman Ginga S

In episode 7 and 8 of Ultraman Ginga S, Reigubas' Spark Doll were used by Alien Chibu Exceller to become Five King.


  • Height: 65 m
  • Weight: 72,000 t
  • Origin: Antarctica (Spawned by Spume)
Powers and Weapons
  • Thermal Attacks: Despite being a monster suited for cold climate, Reigubas is capable of switching to any thermal-based attacks depending on the situation. Unfortunately this also served as a double-edge sword, since a different attack can be used to counter another.
    • Cooling Gas (冷却ガス Reikyaku Gasu): By switching to a blue-eye color, Reigubas can unleash a powerful freezing mist from his mouth that can even freeze Ultras.
    • Flaming Bullet Barrage (火炎弾連打 Kaen-dan Renda): In its default red-eye color, Reigubas can fire rapid fireballs from his mouth. However, the heat of the fireballs can cause a counter effect to a frozen enemy.
  • Exoskeleton: Thanks to it's exoskeleton, Reigubas can resist the extremely cold temperature of Antarctica and able to resist minor assaults.
    • Big Scissor Claw (ビッグシザークロー Biggu Shizā Kurō): The giant pincer on its right can be used as a battering weapon. Its hard texture is also due to its exoskeleton.

Spark Doll

"MonsLive! Golza, Gan Q, Melba, Reigubas, Super C.O.V.! Super Combination!"

Exceller MonsLiving himself with the Spark Dolls to become Five King.

In Ultraman Ginga S, Reigubas was revealed to be a part of Alien Chibu Exceller's collection.

  • Height: 14 cm
  • Weight: 150 g

Other Media

Ultraman Fighting Evolution 3

Reigubas reappeared in Ultraman Fighting Evolution 3 as a playable character.



Taiketsu! Ultra Hero

Reigubas appears as a monster in the game Taiketsu! Ultra Hero as a playable character. His special attacks are ice breath and an energy blast from his large claw.


Ultraman Dyna


Ultraman Dyna Kaiju & Seijin
Ultraman Dyna Sphire | Darambia | Giralen | Neo Darambia | Cyclometra | Grossyna | Daigerun | Sildron | Forgas | Alien Dais | Gyabish | Bao-on | Giaguard | Zenekindarl people | Dexador | Alien Meranie | Monsarger | Mukkito | Himala | Alien Mijir | Garaon | Alien Nuaza | Alien spirits | Alien Krea | Gyanzar | Clone Sildron | Clone Silvergon | Neosaurus | Alien Shilback | Zombayu | Bishmel | Kokakucho | Alien Lasesta | Sodom | Mozui | Diplas | Maricula | Spume | Reigubas | Digon | Alien Chern Left | Alien Chern Right | Demagorg | Grossyna II | Male Gigantes | Female Gigantes | Gaigareid | Kogaraon | Garaon II | Gregorl-Man | Imitation Ultraman Dyna | Monsarger II | Lovemos | Satan Lovemos | Alien Naltis | Menorfa | Bazob | Geomos | Neo Geomos | Yumenokatamari | Bundar | Zomborg | Zomborg Soldiers | Clone Daigerun | Alien Jagira | Jagira Tree | God Jagira | Diaorius | Alien Reguran Captain Zoyaka | Mountain Gulliver 5 | Golza II | Graikis | Torongar | Churasa | Moravia | Mejiwogu | Phantom Monster Army | Alien Fabiras | Devil Fabiras | Alien Chadabin | Mogedon | Neo Darambia II | Terranoid | Zelganoid | Neo Gaigareid | Gransphire
Ultraman Tiga & Ultraman Dyna: Warriors of the Star of Light Geranda | Alien Monera | Deathfacer | Queen Monera
Ultraman Dyna: The Return of Hanejiro Alien Mijir | Pudgy Garaon | Booska | Kamosuke | Casa Madara | Arwon | Alien Dehadoh (Mentioned) | Hanejiro | Alien Fabiras (Hologram) | Wanzetto
Ultraman Fighting Evolution Kaiju & Seijin
Ultraman Fighting Evolution Alien Baltan | Gomora | Dada | Zetton | Eleking | Alien Metron | King Joe | Ace Killer | Alien Magma
Ultraman Fighting Evolution 2 Alien Baltan | Dada | Alien Magma | Tyrant | Yapool | Bemstar | Ace Killer | Giras Brothers | Zetton | King Joe | Gomora
Ultraman Fighting Evolution 3 Alien Baltan | King Joe | Bemstar | Ace Killer | Tyrant | Alien Magma | Giras Brothers | Silver Bloome | Gomora | Zetton | Dada | Fire Golza | Geozark | Zoiger | Gatanothor | Spume | Reigubas | Gan Q Code №00 | Gan Q Code №01 | Zoruim | Gloker Pawn | Gloker Bishop | Giga Endra | Red King | Gudon | Twin Tail | Vakishim | Evil Tiga | Ace Robot | Delusion Ultraseven | Imitation Ultraman Dyna
Ultraman Fighting Evolution Rebirth Bullton | Gomora | Red King | Eleking | EX Eleking | Kyrieloid | Chaos Kyrieloid | Tyrant | EX Red King | EX Gomora | Bullton II | Imitation Ultraman Agul | EX Tyrant | EX Tyrant II | Geronimon | Alien Baltan | Waroga | Chaos Waroga | Alien Mefilas | Chaosroid T | Chaosroid S | Chaosroid U | Neo Chaos Darkness | Neo Chaos Darkness II
Ultraman Fighting Evolution 0 Alien Baltan | Zetton | Eleking | Black King | Vakishim | Alien Hipporito | Alien Temperor | Alien Babarue
Mega Monster Rush Ultra Frontier Kaiju & Seijin
Rush Hunters Baltan Battler・Barel | Guts Gunner・Garm | Magma Master・Magna | Alien Meflias・Djent
Dada Team
Alien Hunters Kanegon-a-Kindo | Alien Metron・Meld | Chibu Loader Strong | Alien Metron・Destroy | Alien Chibu (Chibu Loader Strong) | Guts Alien・Seeds | Alien Magma・Hoog | Alien Groza・Granzer | Alien Deathre・Deflame
Plasma Kaiju Eleking | Antlar | Neronga | Bemstar | Dinosaur Tank | Red King | Gomora | Zetton | Reigubas | Birdon | Golza | Gandar | Tyrant | Pestar | King Joe | Grand King | Verokron | U-Killersaurus
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