This article is about a/an rider in Kamen Rider Decade.
For the original Kamen Rider Kabuto, see Souji Tendou.

Souji (ソウジ Sōji) is a resident Kamen Rider in World of Kabuto. He is Tendou's alternative incarnation from Kamen Rider Decade.


He is a young man who had been given the Kabuto Zecter by the ZECT corporation to be one of its agents in destroying the Worm menace that had befallen his world. However, an encounter with the Phylloxera Worm who mimicked Souji completely, caused the Zecter's Clock Up system to malfunction, trapping Souji in warp speed.

Prior to the start of the Kabuto World arc, Souji encountered the Phylloxera Worm which mimicked his form before he took one of its eyes out with his sister Mayu the sole witness before the malfunction occurred. This led to Souji's Worm mimic to become Sou Otogiri, the user of the TheBee Zecter, and led Mayu to hold a grudge against Kabuto, believing that he murdered her brother Souji. However, in spite of being unable to be with her, Souji does everything in his power to protect Mayu while supporting ZECT in exterminating Worms.

However, once deemed a menace by ZECT higher ups, Kabuto is pursued by the group under Otogiri as he commissions the development of a Clock Down System before tricking Mayu to come with her. Eventually, the truth behind Kabuto is revealed as the Clock Down System takes effect when he attempts to save Mayu, who has been revealed to be the Native Sisyra Worm, from Otogiri. After Tsukasa Kadoya arrives to his aid, the two Riders defeat the Phylloxera Worm while destroying the tower broadcasting the Clock Down waves. Souji slowly disappears back into traveling at the speed of light as Mayu sees him for one last time.

He later appears to help revive Tsukasa in Kamen Rider × Kamen Rider W & Decade: Movie War 2010 and battles Super Shocker, assuming Hyper Form as a result of Decade's K-Touch and later into his Zecter Kabuto form with the All Rider Final Form Ride Card to fight the Super Crisis Fortress.

Kamen Rider × Kamen Rider W & Decade: Movie War 2010

Kabuto and Super-1 (The Last Story)

Kabuto with Super-1, who tells Skyrider to be careful in his search for Decade

Kamen Rider Kabuto, Rider Form, appears in initial scene of Decade's story in Movie War 2010. He searches for Decade alongside Skyrider and Kamen Rider Super-1, and fights against him after a surprise attack against Skyrider. Kabuto and Decade use Clock Up, but Decade combines that ability with invisibility, taking him out with another surprise attack. Kabuto's horn breaks and the only thing left behind is the horn and Kabuto`s Kamen Ride card, the latter picked up by Decade to complete his mission. Eventually, every world and Rider is restored.


Just like the original Kabuto, Souji's arsenal revolves around the use of the Kabuto Zecter to transform into Kamen Rider Kabuto.


Masked Form

―Transformation announcement[src]
  • Height: 190 cm[1]
  • Weight: 132 kg[1]
  • Punching Power: 8 t[1]
  • Kicking Power: 10 t[1]
  • Maximum Jump Height: 20 m[1]
  • Maximum Running Speed: 100 m/8.9 s[1]

Souji only used Kabuto's Masked Form (マスクドフォーム Masukudo Fōmu) when he transformed with Tsukasa Kadoya to fight Phylloxera Worm. Once affixed to the Henshin Belt, Souji assumes his armored Masked Form, but this armor can be taken off to become the sleeker Rider Form. Unlike in the series, the Zecter didn't announce the usual CHANGE BEETLE when Kabuto casts off, although it still retained the CAST OFF exclamation.


Rider Form

"Cast Off!"
―Transformation announcement[src]
  • Height: 195 cm[1]
  • Weight: 95 kg[1]
  • Punching Power: 3 t[1]
  • Kicking Power: 7 t[1]
    • Rider Kick Finisher: 19 t[1]
  • Maximum Jump Height: 37 m[1]
  • Maximum Running Speed: 100 m/5.8 s[1]

In most of his appearances in Kamen Rider Decade, Souji used Kabuto's Rider Form (ライダーフォーム Raidā Fōmu). In Rider Form, Kabuto has access to the Clock Up System, which allows the user to travel at near light speeds to match the Worm's speedy metabolism. To destroy Worms, Kabuto has the Kabuto Kunai Gun, a versatile weapon that can be used as a gun, an axe, or a kunai, all of which allow him to perform the Rider Beat, or his roundhouse Rider Kick.


Hyper Form

"Hyper Cast Off: Change Hyper Beetle!"
―Transformation announcement[src]
  • Height: 198 cm[2]
  • Weight: 102 kg[2]
  • Punching Power: 10 t[2]
  • Kicking Power: 15 t[2]
    • Rider Kick Finisher Power: 30 t[2]
  • Maximum Jump Height: 50 m[2]
  • Maximum Running Speed: 100 m/4.2 s[2]

Souji only used Hyper Form (ハイパーフォーム Haipā Fōmu), an even stronger version of Rider Form, with help from Kamen Rider Decade's K-Touch in Kamen Rider × Kamen Rider W & Decade: Movie War 2010. He was armed with Perfect Zecter.


Zecter Kabuto

"Final Form Ride: K-K-Kabuto!"
―Transformation announcement[src]

Kamen Rider Decade's Final FormRide allows Kabuto to change into Zecter Kabuto (ゼクターカブト Zekutā Kabuto), a giant version of the Kabuto Zecter that flies and can be ridden by Decade. It is able to burrow underground.[3]


Kabuto Zecter

Main article: Kabuto Zecter
  • Device Type: Kabuto Buckle ('Henshin' Belt)
  • Animal: Japanese Rhinoceros Beetle
  • Color: Red
  • Cast-Off System: Flipping the switch-like Zecter Horn on the Kabuto Zecter over.
  • Clock Up System: Slap the Switch-pads on the hip of the belt
  • Primary Finisher: RIDER KICK - Kabuto inputs the button sequence [1-2-3] on the Kabuto Zecter and switches its horn-like lever back to its default position. When the horn-switch is flipped again, a tachyon charge surges from the Kabuto Zecter to the Kabuto Horn where it is refined, then transmitted to Kabuto's right foot. Kabuto later executes a roundhouse kick version of the Rider Kick to the enemy's head.

Perfect Zecter

Main article: Perfect Zecter

The Perfect Zecter (パーフェクトゼクター Pāfekuto Zekutā) is Hyper Kabuto's signature weapon. This weapon has two modes as shown in original series: Sword Mode (ソードモード Sōdo Mōdo) and Gun Mode (ガンモード Gan Mōdo) but Souji only shown used it in Gun Mode.

  • Maximum Hyper Cyclone (マキシマムハイパーサイクロン Makishimamu Haipā Saikuron): After activating all of the Zecter Powers and announcing "All Zecter Combine", the Perfect Zecter releases a vortex of tachyon-charged energy that is able to annihilate multiple enemies at once. However, the recoil is so powerful, he must access Hyper Clock Up to withstand it. But during this state, Hyper Clock Up only affects Kabuto.

Behind the scenes


Souji is portrayed by Daijiro Kawaoka (川岡 大次郎 Kawaoka Daijirō). As Kamen Rider Kabuto, his suit actor is Jun Watanabe (渡辺 淳 Watanabe Jun).


  • Souji's surname was never revealed by Toei. Toei only credits him as 'Souji'.
  • During his later appearance in Movie War 2010, Kabuto appears to be moving at normal speed again, presumably indicating that his Clock Up system was fixed.


Icon-decade Kamen Rider Decade
Kamen Riders
Primary: Tsukasa Kadoya - Daiki Kaito - Natsumi Hikari (movie only)
A.R. World Heroes: Yusuke Onodera - Wataru - Shinji Tatsumi - Kazuma Kendate - Takumi Ogami - Shouichi Ashikawa - Momotaros - Ryotaro Nogami - Souji - Asumu - Kotaro Minami (Black RX) - Kotaro Minami (Black) - Daisuke Yamamoto - Samurai Sentai Shinkenger - Joji Yuki
A.R. World Evil Riders: Chinomanako - Mimihiko - Kuchihiko - Kamen Rider Abyss - Dark Kiva - Ryuga - Orga - Dark Kabuto - Alternative
Other A.R. World Riders: Ren Haguro - Scissors - Zolda - Femme - Verde - Tiger - Imperer - Odin - Raia - Gai - Sakuya Hishigata - Mutsuki Kuroba - G3-X - Kotaro Nogami - Arata - Ibuki - Zanki - Todoroki - Akira - Junichi Kaito - Haruka Miwa - Shin Magaki - X - Ixa - Saga
Prime Universe Kamen Riders: Shun Kageyama - Sou Yaguruma - Masato Kusaka - Takeshi Asakura - Wataru Kurenai - Kazuma Kenzaki - Shouichi Tsugami - Kohtaro Minami - Kotaro Nogami - Shinji Kido - Yuto Sakurai - Dark Shinji - Riotrooper
Hikari Studio
Natsumi Hikari - Kiva-la - Eijiro Hikari
Other Allies
Ai Yashiro - Kivat-bat the 3rd - Garulu - Basshaa - Dogga - Reiko Momoi - Ai - Mai - Mi - Yuri Tomoda - Toko Yashiro - Urataros - Kintaros - Ryutaros - Sieg - Deneb - Teddy - Kohana - Naomi - Owner - Toki - Yu - Grandma - Mayu - Natsumi Hikari - Chinatsu - Hikoma KusakabeIcon-crosswiki - KurokoIcon-crosswiki - Kurando TaniIcon-crosswiki - Masahiko Okamura (A.R. World) - Ritsuko Okamura (A.R. World)
Doctor Shinigami - Ambassador Hell - Apollo Geist - Ten-Faced Demon Llumu Qhimil - Shadow Moon - King Dark - General Jark - Bishium - Yuki - Schwarian - Televi Bae-Kun
Worlds of Black & Black RX: Scorpion Imagin - Seamoon Fangire - Mantis Fangire - Rhinoceros Mutant - Ox Orphnoch - Worm Orphnoch - Frilled Lizard Orphnoch - Brachypelma Worm Aurantium - Brachypelma Worm Viridis - Tarantes Worm Purpura
World of Decade: Shiomaneking - Ganikomol - Doras - Garai - Me-Badjisu-Ba - Zu-Mebio-Da - Me-Ginoga-De - Go-Gadoru-Ba - Leiurus Acutia - Formica Regia - Formica Pedes - Sheerghosts - Raydragoons - Psycorogue - Butterfly Orphnoch - Giraffe Orphnoch - Longhorn Orphnoch - Slug Orphnoch - Wild Boar Orphnoch - Pelican Orphnoch - Stinkbug Orphnoch - Arch Orphnoch - Elephant Undead - Giraffa Undead - Darkroaches - Kappa - Bakeneko - Hitotsumi - Coleoptera Worm Aeneus - Coleoptera Worm Croceus - Coleoptera Worm Argentum - Geophilid Worm - Subst Worm - Cassis Worm Gladius - Albinoleo Imagin - Mole Imagin - Rat Fangire - Sungazer Fangire - Bat Fangire
World of Amazon: Go-Jaraji-Da - Propheta Cruentus - Camponotus Worm Maxilla - Bakeneko - Yobuko
Dai-Shocker Combatmen - Dai-Shocker Scientists - Destron Combatmen
Super Shocker
Narutaki - Bee Woman - Neo Organism
Zanjioh - Jaguarman - Poison Lizard Man - Hiruchameleon - Zu-Gooma-Gu - Go-Jaraji-Da - Volucris Falco - Solospider - Scorpion Orphnoch - Titan Undead - Kodama - Sectio Worm Acuere - Cobra Imagin - Gecko Imagin - Sungazer Fangire
Super Shocker Combatmen
World of Kuuga: Me-Gyarido-Gi - Ra-Dorudo-Gu - Go-Baberu-Da - Go-Bemiu-Gi - Me-Biran-Gi
World of Agito: Me-Badjisu-Ba - Zu-Mebio-Da - Me-Ginoga-De
The Lords
Taurus Ballista
Formica Regia - Formica Pedes
Mirror Monsters
The Contract Monsters
World of Ryuki: Darkwing - Volcancer - Destwilder - Gigazelle - Abyssodon (Abysshammer - Abysslasher)
World of Negatives: Dragblacker
Wild Mirror Monsters
World of Ryuki: GuldThunder - Zebraskull Bronze - Megazelle - Negazelle - Omegazelle - Magazelle
World of Den-O: Gelnewt
World of Negatives: Raydragoons
Orphnochs / Lucky Clover
Momose - Shukawa - Genda - Shirogane
Butterfly Orphnoch
The Undead
World of Blade: Kamata - Hajime Shijo
Buffalo Undead - Elephant Undead - Capricorn Undead
World of Diend: Fourteen - Bossroach - Darkroaches
World of the Rider War: Deer Undead - Scarab Undead - Lizard Undead
魔化魍 Makamou
Gyuki - Bakegani
Kappa - Bakeneko - Ooari - Tengu - Ubume
Sou Otogiri
Coleoptera Worm Argentum - Geophilid Worm - Subst Worm
The Imagin
Alligator Imagin - New Mole Imagin
The Fangires
Beetle Fangire - Yuki
World of Kiva: Ryo Itoya - Swallowtail Fangire - Lion Fangire
World of the Rider War: Shark Fangire - Silkmoth Fangire - Horsefly Fangire - Warthog Fangire
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