|First appearance:||Ultraman Dyna episode 25: "The Moving Base Won't Surface! Part 1"|
|Latest appearance:||Ultraman Dyna episode 26: "The Moving Base Won't Surface! Part 2"|
Subtitle: Space Sea Monster (宇宙海獣 - Uchū Umijū?)
- Type Change (モードチェンジ, Mōdochenji): Reigubas can change his type from fire to ice or ice to fire.When he does it, his eye color changes as well, with blue for ice and red for fire.
- Ice Type (氷, Hyō): Reigubas' default form. Reigubas can also change into the fire type as well.
- Freeze Gas Attack (冷気攻撃, Reiki kōgeki): Reigubas can unleash a powerful freezing mist from his mouth that can even freeze Ultras.
- Fire Type (炎, Honō): Reigubas' secondary form. Reigubas can also change back into ice type.
- Fireballs (火炎弾, Kaen-dan): Reigubas can fire powerful fireballs from his mouth. However, the heat of the fireballs can cause a counter effect to a frozen enemy.
- Cold resistance: Reigubas is resistant to the extreme temperatures of the Antarctic.
- Reigubas pincer are different, which one big and one small. Because of this, Reigubas has a hard time to walks properly.
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 Ray and sent Reigubas to an alternate dimension.
- Suit Actor: Toshio Miyake
- Reigubas was the first monster to defeat Ultraman Dyna in battle, and second to control both the elements of fire and ice, the first of which being Tyrant.
- Reigubas is one of playable character in Ultraman Fighting Evolution 3. He also can type change, which each type has a different special attack.
- Reigubas is the second monster that can type change in Heisei Era. The first is Kyrieloid II.
- 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.
|Ultraman Dyna |
Kaiju & Seijin
|Sphire | Darambia | Giralen | Cyclometra | Grossyna | Daigerun | Sildron | Forgas | Alien Dais | Gyabish | Bao-on | Giaguard | Zenekindarl-Jin | Dexador | Monsarger | Hanejiro | Alien Himara | Alien Mijir | Garaon | Alien Nuaza | Alien Krea | Gyanzar | Clone Sildron | Clone Silvergon | Neosaurus | Alien Silblack | Zombayu | Bishmel | Kokakuchu | Alien Laseta | Sodomu | Mozui | Dipras | Maricula | Spume | Reigubas | Digon | Alien Chern | Demagorg | Gigantes | Gigareid | Gregorl-Jin | Monsarger II | Lovemos | Alien Naltis | Menorfa | Bazob | Geomos | Neo Geomos | Yumenokatamari | Bundar | Zomborg | Clone Daigerun | Jagira | Diaorius | Alien Reguran Captain Zoyaka | Mountain Gulliver No. 5 | Golza II | Graikis | Torongar | Moravaia | Alien Fabiras | Alien Chadabin | Mogedon | Neo Darambia II | Neo Gaigareid | Gransphire|