Kamen Rider


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This article is about a/an monster/rider in Kamen Rider Den-O and Kamen Rider Kiva.
Kamen Rider Nega Den-O
Gender: Male
Series: Kamen Rider Den-O
Motif: Oni, Peach, Momotaro, Negative
Rider Type: Villain
Homeworld: Earth (Main Timeline Continuity)
First Appearance: Kamen Rider Den-O & Kiva: Climax Deka
Last Appearance: Kamen Rider Den-O & Kiva: Climax Deka
Number of Episode
1 (Movie)
Full list of appearances
Actor: Hikaru Midorikawa
Kamen Rider Nega Den-O
"You're all just amateurs. Hurry up and die already!"
―His words when he is about to battle Den-O[src]

Kamen Rider Nega Den-O (仮面ライダーネガ電王 Kamen Raidā Nega Den'ō?) is the fictional villain of the Japanese 2008 Kamen Rider Series movie, Kamen Rider Den-O & Kiva: Climax Deka.


Following the events of Kamen Rider Den-O, Negataros (ネガタロス Negatarosu?) and a select few Imagin are stray Imagin who evaded the fate of the other evil Imagin when Kai ceased to exist in the final episode. Soon afterward, he steals an extra Rider Pass before arriving to restore the future where the Imagin exist by recruiting mobsters and members of the Fangire Race to his aid. In Climax Deka, Negataros has to deal with both the DenLiner Police (デンライナー署 Denrainā Sho?) led by Ryotaro Nogami, an inside man in the form of Yuto Sakurai, further worsened by the brief meddling of Wataru Kurenai.

In the end, Negataros' plan is foiled and his armor is destroyed by the Double Boistous Kick & Darkness Moon Break of Kiva & Den-O Climax Form before he finally meets his end in battle against the DenLiner, the ZeroLiner and Castle Doran.

Negataros is also featured prominently in the S.I.C. Hero Saga (S.I.C.ヒーローサーガ Esu Ai Shī Hīrō Sāga?) in Hyper Hobby Magazine. The story is a retelling of the events of Climax Deka featuring Negataros traveling to April 3, 1971, to team up with the Shocker organization and combating Den-O and the Tarōs along the way.


By swiping a Rider Pass across the SetTouch, Negataros is able to transform into Nega Den-O. Unlike Den-O though, because the user is an Imagin, Nega Den-O bypasses the Plat Form to assume his only fighting form (although a glimpse of Plat Form is briefly seen while transforming). Though he has no other fighting forms equivalent to Rod Form, Ax Form or Gun Form, Nega Den-O can use their equivalent Nega DenGasher weapon modes in battle.

Nega Form

Kamen Rider Nega Den-O

Kamen Rider Nega Den-O

"Nega Form!"
―Transformation announcement[src]
  • Rider height: 180cm
  • Rider weight: 95kg
  • Ability perimeters:
  • Punching power: 7t
  • Kicking power: 8t
  • Maximum jump height: 38m
  • Maximum running speed: 100m/4.8s

Nega Form (ネガフォーム Nega Fōmu?) is Nega Den-O's only fighting form. It is visually similar to Den-O Sword Form, but is a deep shade of purple as opposed to red and has teal tribal markings all over the armor. As with Den-O Sword Form, it is based on the story of Momotarō, the Peach Boy.

The armor met its end at the hands of Den-O Climax Form & Kiva's Double Rider Kick.





Rider Cards

Kamen Ride Nega Den-O

Kamen Ride: Nega Den-O

Behind the scenes


Negataros is voiced by Hikaru Midorikawa (緑川 光 Midorikawa Hikaru?). In both his Imagin form and as Kamen Rider Nega Den-O (Sword Form), his suit actor is Jirō Okamoto (岡元 次郎 Okamoto Jirō?), who is also the suit actor for Kintaros/Den-O Ax Form.

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