Ultraman Wiki

Skydon (スカイドン Sukaidon) is an ankylosaurus-like Kaiju that appeared in the TV series, Ultraman. He appeared in episode 34.

Subtitle: Megaton Monster (メガトン怪獣 Megaton Kaiju)



Skydon's name is a combination of the words "Sky" and "Dawn," Dawn because of Skydon's first arrival at the crack of dawn. Other interpretations claim that Skydon's name is actually a combination of "Sky" and "Down", as Skydon dropped down from the sky but yet another interpretation claims that the "Don" suffix alludes to the monster's resemblance to quadrupedal dinosaurs.



Skydon is a monster from space that landed on Earth in a meteor. Landing in a small construction site, a grumpy Skydon immediately attacked and set the site on fire with his flames. The Science Patrol was quick on assault, but their weapons were uselessly shrugged off by Skydon with ease. With the site on fire, Skydon soon went to sleep.

With their first assault a botch, the Science Patrol went through a series of tactics to get rid of the monster, the likes of which included:

  1. The use of cables strapped to VTOL aircrafts to airlift Skydon away
  2. The use of a giant propeller to take Skydon into space
  3. The use of rockets to fly Skydon into space

all of which failed comedically. During their first failed effort to get rid of the monster, Hayata narrowed avoided crashing and transformed into Ultraman to battle the beast, however much like the Science Patrol's follow-up of plans, Skydon easily shrugged off his assaults and went back to sleep, leaving a moderately embarrassed Ultraman to retreat once his Color Timer began to blink. Finally after a series of failures, the Science Patrol decided to fill the monster with hydrogen, inflating Skydon like a balloon, which miraculously succeeded.

Suddenly, the Air Force noticed Skydon and shot at the monster in mid-air causing Skydon to lose hydrogen and plummet dangerously into the heart of Tokyo. After comedically mistaking a spoon with the Beta Capsule for a second, Hayata transformed into Ultraman again and destroyed Skydon by using the Air Body technique on the Hydrogen-filled monster, destroying Skydon in a fiery explosion.


  • Suit actor: Ēichi Matsushima
  • Skydon was created by a modified Gamakugira suit.
  • Skydon is one of the heaviest monsters in all the Ultra series' at a staggering 200,000 tons. While later monsters that weighed in at around this mass would appear and play a vital role at the series' end, Skydon was merely a joke character not to be taken too seriously.
  • Skydon's roar is a low pitched Gomora roar with some of Zumbolar's mixed in.
  • Skydon is one of the monsters that appears as a picture on the wall of Yuriko's room in episode 18 of The☆Ultraman.
  • Skydon makes a cameo appearance in Ultraman Mebius episode 21, Cry from Space, as a ghost in the Monster Graveyard.
  • Skydon is one of the monsters that makes up Belyudra's left arm in Mega Monster Battle: Ultra Galaxy Legends The Movie.
  • According to Tohl, Skydon's head is asymetrical to let the eyelids and mouth move easier.
  • Skydon's concept art is derived from Gavadon's initial Walrus like design, which in turn was adapted from Neronga's concept art.



Skydon WOWOW.png

  • Length: 60 m
  • Weight: 200,000 t
  • Origin: Space
Powers and ​Weapons
  • Flame: Skydon can spew flames from his mouth.
  • Dense Armor: Skydon's armored-plated skin is incredibly dense and powerful, enough to shrug off an Ultra's assault with ease and withstand most firearms without taking any noticeable damage.

Skydon Pollution

New06 sub01.jpg

  • Length: 60 m
  • Weight: 200,000 t
Powers and ​Weapons
  • Purple Flame: Skydon can spew purple flames from his mouth.
  • Dense Armor: Skydon's armored-plated skin is incredibly dense and powerful, enough to shrug off an Ultra's assault with ease and withstand most firearms without taking any noticeable damage.

Other Media

Kaiju Busters POWERED

A black-colored subspecies called Skydon Pollution (スカイドン汚染 Sukaidon Osen) also appeared.

The Rise of Ultraman

Skydon and Gomora

Skydon appeared in volume 4 of The Rise of Ultraman, where it was seen trapped in Limbo alongside other Kaiju.


Ultraman Kaiju
The Birth of Ultraman Kanegon | Garamon | M1 | Red King | Alien Baltan | Antlar | Chandlar
Ultraman Bemular | Alien Baltan | Neronga | Ragon | Greenmons | Guesra | Antlar | Red King | Chandlar | Magular | Suflan | Pigmon | Gabora | Jirahs | Gango | Mummy Man | Dodongo | Pestar | Gamakugira | Gavadon | Alien Baltan II | Bullton | Alien Zarab | Aboras | Banila | Hydra | Kemular | Underground People | Telesdon | Jamila | Gubila | Guigass | Dorako | Red King II | Suflan II | Gomora | Dada | Goldon | Woo | Keronia | Zumbolar | Alien Mefilas | Giant Member Fuji | Alien Baltan III | Kemur II | Alien Zarab II | Skydon | Seabozu | Zaragas | Re-Pigmon | Re-Dorako | Re-Telesdon | Geronimon | Keylla | Saigo | Alien Zetton | Zetton