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Zaranga (ザランガ Zaranga) is a Kaiju that appeared in Ultraman Cosmos. A baby version of it is called Baby Zaranga (ベビーザランガ Bebi Zaranga). As the species is viviparous, a female Zaranga journeyed to Earth to give birth to her child, but became in peril after she began to rapidly overheat. Fortunately, Ultraman Cosmos managed to rescue her, saving her life as well as that of her child.

Subtitle: Space Monster (宇宙怪獣 Uchu Kaiju)


Ultraman Cosmos

One day, something fell from space and crash landed on Earth. EYES were sent to investigate and decided to get Zaranga out from the crater. Having failed, Musashi summons Cosmos and successfully rescued the monster but it got away easily. Cosmos tried to stop it but to no avail hit by the monster's belly. EYES stopped Cosmos revealing the monster is pregnant as he uses Full Moon Rect to make it sleep for a while. Back at EYES base, Ikiyama appeared and reveal the monster's name Zaranga, having come to Earth and later to the ocean numerous times even during the Edo period in order to give birth to her child. If she failed, her body temperature will rise to the temperature of a sun and eventually die of heat stroke. Team EYES dispatched in order to change Zaranga's route to the sea in order to avoid the city. Ikiyama revealed that Zaranga was supposed to crash land in the sea but it hit the mountains instead due to firework celebrations as it hates the smell of gunpowder. As Zaranga follow the Sheepheard (Team EYES patrol car), the sun's heat accelerated it's temperature and Team EYES needed to be quick but the car was stopped by some tourists whom seems to fond of Zaranga. They even released some fireworks making it superheated and go on a rampage. Musashi transformed into Cosmos and cool her with Luna Cold while using the Transformer Bubble to drag her to the sea so she can finally give birth to her baby. She succeeded and flew back to space along with her baby.


  • Suit actor: Toshio Miyake
  • Zaranga's roar are modified Reicubas roars.
  • Zaranga's appearance and her episode was proposed by producer Hiroyasu Shibuya as a commemoration to the New Year's Day of 2002.




  • Height: 59 m
  • Weight: 74,000 t
  • Origin: Space
  • Weakness: When Zaranga is pregnant, she must go to the sea quickly or else her temperature will rise to the heat of a sun. Also, Zaranga cannot stand to smell gunpowders (commonly fireworks).
Powers and Weapons
  • Rush: Zaranga can run in a moderate speed.
  • Belly Ram: A pregnant Zaranga can ram the opponent with her stomach without hurting the unborn child.
  • Fireball: When superheated, Zaranga will fire fireballs from her mouth, intentionally or not.
  • Flight: Zaranga can fly using energy propulsion.

Baby Zaranga

Baby Zaranga

  • Height: Unknown
  • Weight: Unknown
  • Origin: Near the sea coast of Nishihama, Mother Zaranga's Birth
Powers and Weapons
  • Flight: Like its mother, Baby Zaranga can fly via energy propulsions.


Ultraman Cosmos Kaiju
Ultraman Cosmos: The First Contact Alien Baltan (Basical, Shirubyi) | Don Ron | Clevergon
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Ultraman Cosmos 2: The Blue Planet Parastan | Scorpiss | Sandros | Reija | Alien Gyashi | Shirubyi
Ultraman Cosmos vs. Ultraman Justice: The Final Battle Gloker Pawn | Gloker Mother | Mienin | Lidorias | Golmede | Don Ron | Bolgils | Gloker Rook | Gloker Bishop | Alien Gyashi | Shirubyi | Giga Endra | Delacion