|First appearance:||Mirrorman Episode 21 "Terror of Taigan: The Liquid Monster"|
Subtitle: Liquid Monster (液体怪獣, Ekitai Kaijū?)
- Height: 50 m
- Weight: 40,000 t
Powers and Weapons
- Trunk: Taigan can use his trunk to strangle people and other monsters. He can also suck up water(as well as the green liquid that he was formed from) and shoot it at his opponent.
- Tusks: Taigan can launch his tusks like rockets at his opponents.
- Taigan reuses a Seabozu roar.
|Mirrorman Kaiju & Seijin|
|Iron | Kitty Fire | Darkron | Multi | Noppera-bō | Inbera | Kitty Fire II | Gold Satan | Iron II | Multi II | Invaders | Gravity Machine | Zailas | Shinjuku Rose | Gold Satan II | Noah | King Zaiger | Iron III | Kitty Fire III | Zailas II | Jabala | Kinder | Chamelegon | Aroza | Big Eye | Sphenodon | Darkron II | Taigan | King Wonder | Androsaurus | Coldon | Haebun | Gokibura | Mothgojira | Dustpan | Snake King | Harigojira | Killergon | Gorgosaurus | Mayasaurus | Arigeida | Killersaurus | Pair-Mons King | MoleKing | Smoke Ness | Pair-Mons King β | Gorgosaurus β | Mayasaurus β | Halley Jack | Androsaurus II | Androsaurus Jr. | Magumagon | Zangani | Shadow Mons | Teroringa | Invesaurus | Ghost | Boasaurus | Black Gon | Red Mons | Giranda | Borezaurus II | Iezu | Eletrikzaurus | Dead King|