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Icon-w.png This article is about a/an Dopant identity in Kamen Rider W.

T-Rex Dopant (ティーレックス・ドーパント Tī-Rekkusu Dōpanto) is the Dopant form assumed when one uses the T-Rex Gaia Memory. [1]


T-Rex Dopant

  • Height: 223cm
  • Weight: 198kg

As the T-Rex Dopant (ティーレックス・ドーパント Tīrekkusu Dōpanto), the user can cause massive shockwaves with its roars.

Big T-Rex

To assume this Big T-Rex (ビッグ・ティーレックス Biggu Tīrekkusu) form, the user must use debris to form a robotic T. rex body to increase its powers while in default T-Rex Dopant form.

Marina Tsumura

Main article: Marina Tsumura

Marina Tsumura

The only known user of the T-Rex Memory was Marina Tsumura (津村 真里奈 Tsumura Marina), a woman who was was Yousuke Togawa's girlfriend and also Shotaro Hidari's childhood friend. Same as her boyfriend, she was also fired from her position as Windscale's top designer, and bought the T-Rex Memory with her boyfriend Yousuke to exact their revenge for both being fired. However, when Yousuke went berserk, Marina hired her childhood friend Shotaro to find Yousuke so she can kill him. Once Kamen Rider Double destroyed

inside view of dopant form

the Magma Memory, Marina used her Dopant form to abduct and murder Yousuke. After Shotaro learned the truth, Marina tried to kill him as she assumed the T-Rex Dopant form. After a brief fight, T-Rex Dopant then transformed into the Big T-Rex and led Double on a chase around the city. As Double, Shotaro destroyed the T-Rex Memory with HeatMetal's Metal Branding Maximum Drive and handed Marina over to the authorities.

OOO, Den-O, All Riders: Let's Go Kamen Riders

In an alternate 2011 in which Shocker ruled the world with all the other evil organizations and monster races, the T-Rex Dopant, user unknown, was part of a band of Dopants that were fought by Kamen Rider Double when the Kamen Riders returned to fight Shocker. OOO, Den-O, All Riders: Let's Go Kamen Riders

Kamen Rider Wizard

The T-Rex Dopant was one of the monster souls, presumably the essence of the T-Rex Memory, which surfaced in the world within the Magic Stone. Appearing as Big T-Rex, it was part of an army of Amadum's strongest monsters which fought the 14 Heisei Riders, it was destroyed by the combined efforts of Double and several other Riders. Neverending Story

Video Game appearances

Kamen Rider: Climax Heroes W

T-Rex Dopant is one of several villainous characters whichappear in the Climax Mode game mode of Kamen Rider: Climax Heroes W as NPC characters the player must fight. They can later be unlocked for player use. However, they do not have Rider Finales, though they still have a Special Moves and it are stronger than any of the Riders' Special Moves.

Kamen Rider: memory of heroez

T-Rex Dopant, in its Big T-Rex form, serves as a boss in the game, fought by Kamen Rider Accel.

Behind the Scenes

Concept Art

T-Rex Dopant was designed by Katsuya Terada (寺田 克也 Terada Katsuya).


Icon-w.png Kamen Rider W
Narumi Detective Agency
Shotaro Hidari - Philip - Akiko Narumi - Sokichi Narumi† - Tokime
Memory Drivers
Double Driver - Accel Driver - Lost Driver
Gaia Memory-related
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 - Shroud Magnum
RevolGarry - HardBoilder - Gunner A - Diablossa - SkullBoilder - SkullGarry - HardMammother
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
Novel-Exclusive Villains (The One Who Continues After Z): Zoo Dopant - Zero Dopant - Queen Bee Dopant - Flower Dopant - Elephant Dopant - Dolphin Dopant - Salamander Dopant - Fish Dopant - Bird Dopant - Ape Dopant - Bee Dopants
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 - Caracal Dopant - Toadstool Dopant
Yukiji Bando - Kazuha - Hideo - Mamoru Nikaido - Sabu
Katsumi Daido - Maria S. Cranberry - Reika Hanehara - Kyosui Izumi - Gozo Domoto - Ken Ashihara