Category:First Villain

This category houses the first kaijin seen and fought by the rider in each show in the Kamen Rider Series and most of the time they are the weakest kaijin of the series.

By show

 * Kamen Rider - Spider Man
 * Kamen Rider V3 - Scissors Jaguar
 * Kamen Rider X - Neptune
 * Kamen Rider Amazon - Spider Beastman
 * Kamen Rider Stronger - Kikkaijin Gangaru
 * Kamen Rider (Skyrider) - Gameleojin
 * Kamen Rider Super-1 - Fire Kong
 * Birth of the 10th! Kamen Riders All Together!! - Tiger-Roid
 * Kamen Rider Black - Bat Mutant
 * Kamen Rider Black RX - Skullma
 * Shin Kamen Rider: Prologue - Goushima/Cyborg Soldier Level 2
 * Kamen Rider ZO - Doras
 * Kamen Rider J - Agito
 * Kamen Rider Kuuga - Zu-Gumun-Ba
 * Kamen Rider Agito - Pantheras Luteus
 * Kamen Rider Ryuki - Dispider
 * Kamen Rider 555 - Stingfish Orphnoch
 * Kamen Rider Blade - Bat Undead
 * Kamen Rider Hibiki - Tsuchigumo
 * Kamen Rider Kabuto - Aracnea Worm Rubor
 * Kamen Rider Den-O - Bat Imagin
 * Kamen Rider Kiva - Horse Fangire
 * Kamen Rider Decade - Numerous kaijin from Kuuga through Kiva.
 * Kamen Rider W - Magma Dopant
 * Kamen Rider OOO - Kamakiri Yummy
 * Kamen Rider Fourze - Orion Zodiarts
 * Kamen Rider Wizard - Minotauros
 * Kamen Rider Gaim - Byakko Inves

Trivia

 * Perhaps as to homage the first Kamen Rider, the most common motif for the first Kaijin is a spider, while the second most common is a bat.
 * Both Doras and Goushima share the honor of being both the First Kaijin and the Last Kaijin to be fought by a Kamen Rider due to their respective riders being movie-exclusives.