Home world: Mars
First appearance: Ultra Q episode 3: "The Gift From Space" (1966)
Latest appearance: None
Height: 30 m
Weight: 10,000 t
Category: Kaiju
Affiliation: None

Namegon (ナメゴン Namegon) is a slug-like kaiju that appears in episode 3 of Ultra Q

Subtitle: Mars monster (火星怪獣 Kasei kaijū)


  • Height: 30 m
  • Weight: 10,000 t
  • Origin: Mars


Ultra Q

As mankind continued to fight amongst itself, it also began to explore the limitless depths of space. Reaching as far out as Mars, humanity began to threaten other races with its own recklessness. A rocket that was sent to Mars crash landed off the coast of Japan where two golden spheres, discovered on the red planet, were stolen by a pair of thieves. While one sphere would be dropped and then recovered by Ippei, the other was taken to the thieves’ hideout in a cave. Accidentally dropping the golden orb, the pair released a hideous monster on the world when the orb hatched into Namegon once falling into a hot spring!

Roaring aloud, the slug-like monster killed the thieves with its eye beams. Soon the monster broke out of the mountain, challenging the people around it! As Ippei and Yuriko flee with the soldiers and civilians, the creature takes chase and accidentally falls off the cliff, splashing into the ocean below! The alien’s body is quickly dissolved, leaving the stunned world to wonder what it was.



Not long after, as Ippei, Yuriko, and Professor Ichi-no-tani discuss what the creature could have been, the second orb, being worn by Yuriko as a pendant, began to grow once close to a heat source! They quickly realize what it was and threw it out the window. Not long after, the second Namegon emerges, ready to challenge the world. The monster would quickly be dealt with much like the first, but the statement made by the rulers of Mars was loud and clear: stay away


  • In episode 22 of Ultraman Mebius, Namegon is referenced briefly while logs on a Mars expadition are being looked over.
  • Although not physically seen, Namegon is one of the monster that makes up Beryudora's right arm in Mega Monster Battle: Ultra Galaxy Legend The Movie.
  • Namegon shares his roar with Toho Monsters, Varan and Baragon.
  • Namegon has several firsts of the Ultra series:
    • Namegon has the honor of being the first Ultra-Kaiju to kill a human.
    • Namegon is also one of the first Ultra-Kaiju to be confirmed to be of a species.
    • Namegon is the first space monster to invade Earth in the Ultra series.

Powers and Abilities

  • Eye Beams: Namegon can fire beams of wavy energy from its eyes. These beams can kill a man on contact, but don’t have any real explosive force.


Namegon will dissolve rapidly when exposed to saltwater for its slug-like features.


Ultra Q Kaiju & Seijin
Ultra Q Gomess | Litra | Goro | Namegon | Juran | Peguila | Gameron | Kai Dragon | Otohime | Gorgos | Mongular | Tarantula | M1 | Balloonga | Larugeus | Garamon | Kanegon | Cicada Man | The 1/8 Humans | Pagos | Kemur Man | Ragon | Clapton (unreleased) | Bostang | Alien Ruperts | Alien Keel | The Giant | Butterfly Morpho | Sudar | Goga | Lily | Peter | Todora | The Train In The Vary Dimension
Ultra Q The Movie: Legend of the Stars Nagira | Wadatuzin
Ultra Q: Dark Fantasy Gara Q | Garagon | Alien Giraff | The Living Brain | Puzzle Woman | Kiara | Ghoulish Beings | Unitoroda | Sabikong | Yamada | The 3-eyed Totem Pole | Alien Utsugi | Varno the Mirror Watchman | Mirror World Duplicates | Lily | Cicada Woman | Garagon II | Komachi | Advance Human Genome | Hecate | Kanegoneh | The Doll | Rekyum Man
Neo Ultra Q Niruwanie | Burezaren | Alien Vulcanus | Dark Malicious Mahler | Android Epigonoido | Sedegan | Gastrobot | Guy Nord star aide-de-camp to His Majesty Hatha Guy Nord | Purana | Falmagon | Argos Fear Intellectual Sphere | Soma