This article is about a/an episode in Kamen Rider Gaim.

Baron's Genesis Transformation! (バロンのゲネシス変身! Baron no Geneshisu Henshin!) is the twenty-sixth episode of Kamen Rider Gaim. This episode marks the debut of Baron Lemon Energy Arms, an unintended development made by the producers in response to Kaito's popularity with viewers. It also features the final appearance of Gaim Ichigo Arms.


Mai wants to know why Kouta has been hiding from her, and he reveals the truth to her about Helheim Forest, as well as the Inves and the fate of Yuya, upsetting Mitsuzane, who is still under orders from his brother. Meanwhile, Kaito plans to finish his fight with Demushu.


Listening to Takatora, Mitsuzane learns that his brother is willing to bear the sin and that he would one day be forced to make such a decision. The next day, Mitsuzane is livid to learn that Kouta had told Mai the truth of the Inves and Yggdrasill. When Mai tries to public reveal what she knows, Mitsuzane summons Inves to attack the rally with Armored Riders destroying the monsters. Mitsuzane gets upset with Kouta for making Mai sad for revealing the truth to her before finding him slapped by the girl he loves. At the lab, after reviewing the footage of him fight Dēmushu, Ryoma considers Kaito no longer needed in his plans before Yoko uncharacteristically suggests giving the teen another chance as Mitsuzane arrives with a proposition. As Yoko gives Kaito a Genesis Driver with Zack confronting him over allying himself with their enemy, Mitsuzane has Kouta come with him to Helheim Forest to track down the Over Lords before taking a hit so Marika can attack Gaim as he equips Kachidoki Arms to defeat her before checking Mitsuzane. By the time he gets Gaim to leave him to find the Over Lords, Mitsuzane tells Yoko he will handle things from here. By that time, Kaito uses the Lemon Energy Lock Seed and Genesis Driver to become New Generation Rider Baron and fight Demushu as Gaim eventually arrives and attempts to stop their fight. In the end, furious of being overpowered by Baron, Demushu only leaves as being telepathically contacted by Redyue that their leader would not be pleased of the turn of events. Forced to watch Demushu fall back, Baron argues with Gaim with Ryugen taking advantage to snipe Kouta from behind.


Guest cast



JimberPeach Yellowshot

The yellow arrow

  • During Gaim Jimber Peach Arms' battle with Marika, every time he fired the Sonic Arrow, the shots were colored yellow as opposed to his form's color pink.


Gaim 24 Lockseeds screen

Armored Rider Gaim's Lockseed Collection: 10

DVD releases

Kamen Rider Gaim Volume 7 features episodes 25-28: Gridon and Bravo, the Strongest Tag, Baron's Genesis Transformation!, When You Know the Truth... and The Betrayal of Zangetsu. [1]

External links


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