Monsters

Monsters are the main antagonists in every incarnation of Kamen Rider, and are sometimes the source of their powers. Whether they are controlled by evil organizations, attack humans to feed off them or become more powerful or are malicious creatures that wish to take over the world, they oppose the Kamen Riders. Oftentimes using the powers of the very monsters they fight against, Riders battle these monsters to protect the people.

Terminology

Kaijū (怪獣, kaijū) is a Japanese word that literally translates to "strange creature," and is used to refer to a genre of tokusatsu entertainment. Kaiju films usually showcase monsters of any form, usually attacking a major Japanese city or engaging another (or multiple) monster(s) in battle.

Related terms include kaijū eiga (怪獣映画, kaijū eiga, monster movie), a film featuring giant monsters or a single monster; kaijin (怪人, kaijin referring to roughly humanoid monsters); and daikaiju (大怪獣, daikaijū, giant kaiju), specifically meaning the larger variety of monsters.

By Series

Showa Era

• Kamen Rider - Shocker Kaijin, Gel Shocker Kaijin
• Kamen Rider V3 - Destron Kaijin
• Kamen Rider X - Shinwakaijin & Akuninkaijin (followers of G.O.D.)
• Kamen Rider Amazon - Beastmen (followers of Gedon or Garander Empire)
• Kamen Rider Stronger - Kikkaijin (followers of Black Satan), Majin (members of the Delzer Army)
• Kamen Rider (Skyrider) - Neo Shocker Kaijin
• Kamen Rider Super-1 Dogma Kaijin (followers of Dogma Kingdom then Jin Dogma)
• Birth of the 10th! Kamen Riders All Together!! - Roids (followers of the Badan Empire)
• Kamen Rider Black - Gorgom Kaijin
• Kamen Rider Black RX Crisis Empire Kaijin
• Shin Kamen Rider: Prologue - Cyborg Soldiers (Created by the Institute of Super Science, following the Foundation)

Heisei Era

• Kamen Rider Kuuga - Gurongi
• Kamen Rider Agito - Lords
• Kamen Rider Ryuki - Mirror Monsters (Contract Monsters)
• Kamen Rider 555 - Orphnoch
• Kamen Rider Blade - Undead
• Kamen Rider Hibiki - Makamou
• Kamen Rider Kabuto - Worms
• Kamen Rider Den-O - Imagin (Gigandeath)
• Kamen Rider Kiva - Fangire (Six Pillars Sabbath), Arms Monsters, Legendorga
• Kamen Rider W - Dopants
• Kamen Rider OOO - Greeed, Yummies
• Kamen Rider Fourze - Zodiarts (Horoscopes)
• Kamen Rider Wizard - Phantoms
• Kamen Rider Gaim - Inves
• Kamen Rider Drive - Roidmudes
• Kamen Rider Ghost - Gamma, Gammaizers
• Kamen Rider Ex-Aid - Bugsters
• Kamen Rider Build - Smash, Blood Tribe
• Kamen Rider Zi-O - Another Riders
• Kamen Rider Amazons - Amazons

Reiwa Era

• Kamen Rider Zero-One - Magia, Raiders
• Kamen Rider Saber - Megid
• Kamen Rider Revice - Deadmans, Gifftarians

Adaptations

• Saban's Masked Rider - Insectovores
• Kamen Rider Dragon Knight - Mirror Monsters

Other

• Category:Sentai Kaijin
• Ultraman Kaiju