"This is kaiju!" Yojiro barked. "When did they ever give a damn about adhering to science!"
― Hiroshi Yamamoto, MM9

The ability to use the abilities of a giant monster. Variation of Monster Physiology.

Also Called

  • Kaiju/Daikaiju (Strange Beasts/Giant Strange Beasts)
  • Legendary Monsters
  • Mythical Monsters


The user is or has the ability to take on the form of a gigantic monster, a creature that is often hideous and may produce fear or physical harm by either its appearance or its actions. The word "monster" derives from Latin monstrum, an aberrant occurrence, usually biological, that was taken as a sign that something was wrong within the natural order.

Giant Monsters are remarkably variable in appearance and most have their own unique abilities and powers, the one fact that is common to them all is their immense size, endurance, and strength.





  • Changing may be difficult.
  • Most aren't particularly smart.
  • May lose sentience in a transformed state.
  • Their size makes them very obvious and practically impossible to miss, in every way possible.
  • Not many people like a monster, especially one that is essentially living natural disaster.

Known Monsters

See Also: Kaiju.


  • Loch Ness Monster (Celtic Mythology)
  • Typhon (Greek Mythology)
  • Apep (Eqyptian Mythology)
  • Jörmungandr (Norse Mythology)
  • Fenrir (Norse Mythology)
  • Cirein-cròin (Scottish Gaelic)



  • Jörmungandr (Beauchamp Family series)
  • Nemesis (Project Nemesis)
  • Balrogs (Lord of the Rings)
  • Fanoxean (The Young Guardians)

Live Television


  • Zivon (Bionicle)
  • Tahtorak (Bionicle)
  • Kanohi Dragon (Bionicle)
  • Gadunka (Bionicle)
  • Ancient Sea Behemoth (Bionicle)
  • The Bewilderbeast (How to Train Your dragon)
  • The Red Death (How to Train Your dragon)
  • Po Kong (Jackie Chan Adventure)
  • The Great Devourer (Lego Ninjago: Masters of Spinjitzu)
  • Andy Beast (Monster High)
  • Zillo Beast (Star Wars: The Clone Wars)
  • Malachite (Steven Universe)
  • Multi-Farious (Stretch Armstrong and the Flex Fighters)
  • Belloc Rosenblatt (Firebreather)


  • Titano (DC Comics)
  • Fin Fang Foom (Marvel Comics)
  • Mangog (Marvel Comics)
  • Giganto (Marvel Comics)
  • Krakoa (Marvel Comics)
  • Gorgilla (Marvel Comics)
  • Googam (Marvel Comics)
  • Orrgo (Marvel Comics)
  • Goom (Marvel Comics)
  • Tundra (Marvel Comics)
  • Apocalypse Beast (Marvel Comics)
  • Furnax (Marvel Comics)
  • Fredzilla (Marvel Comics)
  • Todd Ziller/American Kaiju (Marvel Comics)


  • Titans (Attack on Titan)
  • Colossus Titan (Attack on Titan)
  • Ayon (Bleach)
  • Gillians (Bleach)
  • Hooleer (Bleach)
  • Yammy Llargo (Bleach); via Resurrección
  • Choe Neng Poww (Bleach); via Resurrección
  • Gigantic Digimon (Digimon)
  • Giran (Dragon Ball)
  • Great Apes (Dragon Ball)
  • Anilaza (Dragon Ball Super)
  • Nova (Freezing)
  • Household Vessel Users (Magi The Labrinth of Magic); via Assimilation
  • Voltaire (Magical Girl Lyrical Nanoha)
  • Hakutenou (Magical Girl Lyrical Nanoha)
  • Many Guardian ÄRMs (Marchen Awakens Romance)
  • Chimera (Marchen Awakens Romance); fused with the Ghost ÄRM, Hydra
  • Saturn (Marchen Awakens Romance); after the Darkness ÄRM, Finsternis was destroyed
  • Godzillo (My Hero Academia)
  • Nega-Suu (Monster Musume)
  • Kii (Monster Musume); temporarily
  • Tailed Beasts (Naruto)
  • Angels (Neon Genesis Evangelion)
  • Sea Kings (One Piece)
  • Orochi (Yaiba)
  • Clear Note (Zatch Bell!); in his final form
  • Demolt (Zatch Bell!)
  • Riou (Zatch Bell!)

Video Games

  • Every Boss (Blood of Bahamut)
  • Phlegyas (Dante's Inferno)
  • Earth Defenders (Godzillla Unleashed)
  • Global Defense Force Mechas (Godzillla Unleashed)
  • Mutants (Godzillla Unleashed)
  • Aliens (Godzillla Unleashed)
  • Primal Beasts (Granblue Fantasy)
  • Kaiju (Kaiju Combat)
  • Cho'Gath (League of Legends); via Consumptive Growth
  • Thresher Maws (Mass Effect)
    • Kalros
  • Leviathan (Mass Effect)
  • Dalamadur (Monster Hunter)
  • Laviente (Monster Hunter)
  • Colossi (Shadow of the Colossus)
  • Titans (Skylanders)
  • Fire Viper (Skylanders)
  • Sand Monster (Skylanders)
  • Guacamole Monster (Skylanders)
  • Hydra (Skylanders)
  • Leviathan (Skylanders)
  • Chompy Mage (Skylanders); via Giant Chompy Form
  • Evil Sea Monster (Skylanders)
  • Rainfish (Skylanders)
  • Gorog (Star Wars: The Force Unleashed II)
  • Monsters (Rampage! Total Destruction)
  • Fenrir (Valkyrie Crusade)

Tabletop Games

  • Tarrasque (Dungeons and Dragons)

Web Comics

  • Horrorterrors (Homestuck)

Web Original


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