This article is about a/an movie-exclusive villain in Kamen Rider OOO and Kamen Rider W.

Eren Komori (小森 絵蓮 Komori Eren) was the Gaia Memory dealer of the Museum during 1999. By using the Bat Memory, she can become the Bat Dopant (バット・ドーパント Batto Dōpanto). As the Bat Dopant, she can use her ultrasonic voice to control vehicles such as a tank truck.


She was fighting with Kamen Rider Skull, but later defeated by Skull using the Skull Punisher to trap her under a truck she was using to fight him. Though she begs for his mercy in letting her go, Skull leaves her to die as the vehicle bursts into flames. She appears in the film when the Pteranodon Yummy uses the Memory Memory to reveal the events of Sokichi Narumi's past.

Super Hero Taisen Z

Bat Dopant was revived as a member of Space Shocker. She was seen fighting The Gingaman.

The Fateful Sengoku Movie Battle

Bujin Double engaging Dopants loyal to Bujin Gaim in the world of the Warring Period.

A Bat Dopant appears as part of a group of four Dopants along with Death Dopant, Spider Dopant, and Eyes Dopant, accompanying Kamen Rider Bujin Gaim and the Nepenthes Monster in his attack on the Double Army. The Dopants are met by Bujin Double, who assumes CycloneJokerXtreme. The four Dopants are soon destroyed by Bujin Double's Prism Bicker's Bicker Charge Break Maximum Drive. Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle

Dopant Form

Main article: Bat Dopant

Bat Dopant

―Transformation announcement[src]
  • Height:
  • Weight:

Bat Dopant (バット・ドーパント Batto Dōpanto) ,the Bat Dopant, the user can use their ultrasonic voice to control vehicles such as a tank truck.



Behind the Scenes


Eren Komori is portrayed by Reon Kadena (かでな れおん Kadena Reon), who would later portray Alia and Alicia in Kamen Rider Ghost.

Concept Art

Bat Dopant concept art


Eren's "bat costume".

  • She wears tight clothes and pantyhose with Bat icon.
  • Her surname, "Komori" (小森 lit. "Small Forest"), in hiragana, is one elongation kana from becoming "Koumori" (蝙蝠 Kōmori, lit. "Bat"), a pun on her status as the Bat Dopant.
  • Bat Dopant's head is redesigned for Another Kiva in Kamen Rider Zi-O.


Narumi Detective Agency
Shotaro Hidari - Philip - Akiko Narumi - Sokichi Narumi† - Tokime
Double Driver - Accel Driver - Lost Driver - Gaia Memories - Memory Gadgets - Fang Memory - Xtreme Memory - Trial Memory - Gaia Memory Enhancing Adapter - Metal Shaft - Trigger Magnum - Engine Blade - Skull Magnum - Prism Bicker - Eternal Edge - RevolGarry - HardBoilder - Gunner A - Shroud Magnum - SkullBoilder - SkullGarry
The Fuuto Irregulars
Santa-chan - Watcherman- Queen & Elizabeth - Isamu Bito
Futo Police Department
Ryu Terui - Mikio Jinno - Shun Makura
Museum and the Dopants
Foundation X
The Sonozaki Family: Terror - Claydoll - Taboo/R Nasca - Nasca - Smilodon - Masquerade Dopants
Dopants: Magma Dopant - T-Rex Dopant - Money Dopant - Anomalocaris Dopant - Cockroach Dopant - Sweets Dopant - Virus Dopant - Violence Dopant - Arms Dopant - Bird Dopant - Ice Age Dopant - Triceratops Dopant - Liar Dopant - Puppeteer Dopant - Invisible Dopant - Nightmare Dopant - Beast Dopant - Zone Dopant - Yesterday Dopant - Quetzalcoatlus Dopant - Gene Dopant - Jewel Dopant - Old Dopant - Utopia Dopant - Energy Dopant
Movie Exclusive Villains: Dummy Dopant - Heat Dopant - Trigger Dopant - Metal Dopant - Luna Dopant - Cyclone Dopant - Bat Dopant - Spider Dopant - Kamen Rider Eternal - Commander Dopant - Eyes Dopant
Manga Exclusive Villains (Futo Detective): Road Dopant - Aurora Dopant - Meganeura Dopant -Brachiosaurus Dopant - Scream Dopant - Alcohol Dopant - Puzzle Dopant - Reactor Dopant - Antlion Dopant - Owl Dopant - Trash Dopant
Katsumi Daido - Maria S. Cranberry - Reika Hanehara - Kyosui Izumi - Gozo Domoto - Ken Ashihara
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