Home world: Planet Earth (Nebula M78 Universe)
First appearance: Return of Ultraman episode 30 "The Accursed Skeleton God" (1971)
Latest appearance: None
Height: 70 m
Weight: 45,000 t
Category: Kaiju
Affiliation: Beryudora (Body Part)

Oxter (オクスター Okusutā?) was a kaiju that appeared in the TV Series Return of Ultraman episode 30.

Subtitle: Buffalo Monster (水牛怪獣 Suigyū Kaijū?)


  • Height: 70 m
  • Weight: 45,000 t
  • Origin: Underground


Return of Ultraman

A gigantic ox kaiju, Oxter acted as a guardian of an underwater graveyard of prehistoric buffaloes. When archaeologists contaminated the grave-site with their hands, the guardian lashed out, killing people with its acid. MAT was called into action, firing away at the beast with firepower to no effect. Hideki Go called on Ultraman Jack and challenged the gigantic creature, and soon the fight moved to the underwater canyons of the lake.

Jack managed to escape and use the Ultra Bracelet to drain the lake water into the sky as vapor. As Oxter roared on, the hero unleashed his Specium Ray, sending it to ground in a heap as streams of energy continued to fire from Ultraman’s fingers. The energy vaporized Oxter’s flesh, reducing it to a skeleton that was soon buried underwater by the returning lake water.

Soon after the battle though, Jack, touched by Oxter's determination to guard its deceased herd for eternity long after their extinction, moves Oxter's skeleton together with the rest of its herd to the deepest depths of the lake and drops the evaporated lake water back, sealing Oxter and the rest of its herd into its tomb where it may rest in peace in an eternal slumber, never to be disturbed by humanity ever again.


  • Suit actor: Toya Takanobu
  • Fittingly, Oxter's roars are simply the bellowing and groaning of an adult bull.
  • Design: Akihiko Iguchi
  • Although not physically seen, Oxter is one of the monsters that makes up Beryudora's Body in Mega Monster Battle: Ultra Galaxy Legend The Movie.
  • Oxter is among the few Kaiju to be based on cattle and bull, alongside Cattle God and the choju Cowra.

Powers and Weapons

  • Long Tongue: Oxter can extend a long tongue from his mouth that he can use as a whip to lash buildings and foes.
  • Acid Spray: Oxter can emit a stream of acid from his mouth. This acid is capable of melting an entire man in just a few seconds.
  • Horns: Like normal bulls, Oxter is equipped with two large horns on each side of his head. These horns are capable of moving, allowing him to catch and crush opponents between them along with using them as impaling weapons.



Figure Release Information


Return of Ultraman Kaiju & Seijin
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 | Zagorath | 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