This category houses the last monster or Rider fought by the Rider or Riders in each show in the Kamen Rider Series. Though they are often the main antagonists of their respective series, this is not always the case. In some instances a non-human Kamen Rider is fought instead of a monster.
Starting in Kamen Rider Wizard, it has become a common trend to have a major antagonist defeated in the penultimate episode, or series finale, and another, less significant monster fought in the last episode, which serves as an epilogue. Other exceptions include:
- Amazon fought two versions of Emperor Zero, but they do not count as monsters. Thus, the Salamander Beastman qualifies as the last monster.
- Stronger fought Marshal Machine, Commander Jijaku & Armored Knight simultaneously in the finale.
- Agito defeated the El of the Ground before defeating the OverLord of Darkness. However, the OverLord's status as a monster is not clear. Thus, both are included.
- OOO defeated Maki and Uva at the same time, as Uva had taken the form of the Medal Vessel.
- Drive not only follows the finale-epilogue trend, it also has two Last Monsters in its official finale, as Heart fought Shinnosuke after the two teamed up to defeat the Sigma Circular.
List of Last Monsters
- Kamen Rider - Hiruchameleon
- Kamen Rider V3 - Zariganna
- Kamen Rider X - Scorpion-Geronimo Jr.
- Kamen Rider Amazon - Great Emperor Zero
- Kamen Rider Stronger - Marshal Machine, Commander Jijaku & Armored Knight
- Kamen Rider (Skyrider) - Great Leader of Neo-Shocker
- Kamen Rider Super-1 - Satan Snake
- Birth of the 10th! Kamen Riders All Together!! - Ambassador Darkness
- Kamen Rider Black - Creation King
- Kamen Rider Black RX - Emperor Crisis
- Shin Kamen Rider: Prologue - Cyborg Soldier Level 2
- Kamen Rider ZO - Neo Organism
- Kamen Rider J - Machine Beast Mothership Fog Mother
- Kamen Rider Kuuga - N-Daguva-Zeba
- Kamen Rider Agito - El of the Ground & OverLord of Darkness
- Kamen Rider Ryuki - Kamen Rider Odin & Goldphoenix
- Kamen Rider 555 - Arch Orphnoch
- Kamen Rider Blade - Kamen Rider Chalice/Joker Undead
- Kamen Rider Hibiki - Rokurokubi
- Kamen Rider Kabuto - Gryllus Worm
- Kamen Rider Den-O - Death Imagin
- Kamen Rider Kiva - Bat Fangire Reborn
- Kamen Rider Decade - Super Apollo Geist
- Kamen Rider W - Utopia Dopant (Finale)/Energy Dopant (Epilogue)
- Kamen Rider OOO - Kyoryu Greeed & Medal Vessel
- Kamen Rider Fourze - Sagittarius Nova Zodiarts
- Kamen Rider Wizard - Gremlin (Finale)/Amadum (Epilogue)
- Kamen Rider Gaim - Lord Baron (Finale)/Kamen Rider Jam (Epilogue)
- Kamen Rider Drive - Sigma Circular & Heart (Finale)/Gamma Assault (Epilogue)
- Kamen Rider Ghost - Great Eyezer (Finale)/Bugster Viruses (Epilogue)
- Kamen Rider Amazons - Kamen Rider Amazon Alpha (Season 1)Kamen Rider Amazon Neo (Season 2)
- Kamen Rider Ex-Aid - Kamen Rider Cronus
- Kamen Rider Build - Evolto
- Kamen Rider Zi-O - Another Decade
- Amazon Alpha is the only Kamen Rider to be the final monster without outright having a monster form or, as in Odin and Cronus' case, having a pact with a monster.
- The exception is Swartz, who was both a rider and a monster.
- A trend that began with Fourze is having the final villains either be outright Kamen Riders or Rider-like.
All items (56)
- Gamma Assault (Drive)
- General Black
- Goldphoenix (Ryuki)
- Great Eye
- Great Leader of Neo-Shocker
- Great Leader of Shocker
- Machine Beast Mothership Fog Mother
- Marshal Armor
- Marshal Demon
- Marshal Machine
- Masamune Dan
- Masato Mishima
- Mitsuaki Gamou