This article is about a/an rider in Kamen Rider Den-O and Kamen Rider Decade.
Mimihiko Onigashima
Gender: Male
Series: Kamen Rider Decade
Motif: Dragonfly
Rider Type: Villain
Homeworld: Earth (Main Timeline Continuity)
First Appearance: Super Den-O Beginning
Last Appearance: Cho Kamen Rider Den-O & Decade Neo Generations: The Onigashima Warship
Number of Episode
2 (Decade)
1 (Movies)
Full list of appearances
Actor: Shingo Yanagisawa

Mimihiko (ミミヒコ Mimihiko) is one of the main villains in Cho Kamen Rider Den-O & Decade NEO Generations: The Onigashima Battleship alongside his brother, Kuchihiko.


He was sent by his brother into the past in order to rewrite history. He is armed with the Silvery Kanabō (純銀の金棒 Jungin no Kanabō), which also enables his transformation into a silver dragonfly-like Shilubara (シルバラ Shirubara).

He briefly appears in Kamen Rider Decade in the World of Den-O to acquire the vase for his brother's agenda, getting it while Decade and Den-O are distracted with their fight as New Den-O arrives to stop Shilubara before he took the item back in time. He later travels to 1980 to steal the Trump Stone, but is forced to wait for his brother to acquire it in their time.

Once the Trump is complete, Mimihiko pilots the Demon's Warship back into the past where he fights against the riders with his brother, sacrificing himself to save his brother from Cho Den-O's attack.

Rider Statistics



  • Rider Height: 198 cm
  • Rider Weight: 132 kg

Ability Parameters:

  • Punching Power: 9t
  • Kicking Power: 10t
  • Maximum Jump Height: 25 m
  • Maximum Running Speed: 100m/6.2s


Wizard Amadum 04

Amadum as Mimihiko.

Amadum, the ruler of the world within the Magic Stone with a penchant for dressing as past villains fought by Kamen Riders, appears in Mimihiko's costume in Neverending Story.

Behind the scenes


Mimihiko is portrayed by Shingo Yanagisawa (柳沢 慎吾 Yanagisawa Shingo). As Shilubara, his suit actor was Norihito Ito (伊藤 教人 Itō Norihito).


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