Genesis Riders Appear!

is the twelfth episode of Kamen Rider Gaim. Following a brief sneak-peek during the end credits of Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle, this episode introduces the concept of the Genesis Driver, Sonic Arrow, and the Energy Lockseeds, as well as Takatora Kureshima's first transformation into his new form, Kamen Rider Zangetsu Shin. Also debuting are the Kurokage Troopers.
==Synopsis==
Kouta and Mitsuzane attempt to warn the Beat Riders about Yggdrasill's manipulation, only to find that Yggdrasill is deploying Kurokage Troopers to silence anyone who knows the truth as Zangetsu uses a new belt model. Meanwhile, Mai encounters the mysterious girl who resembles her.
==Plot==
After reviewing what they have learned of the Yggdrasill Corporation using them and the other Armored Riders, Kouta and Mitsuzane choose not to transform for a while. However, an Inves attack forces Kouta to transform in order protect a group of girls from the Inves before he and Mitsuzane observe Yggdrasill's new security force, the Kurokage Troopers, destroy all traces of Helheim Forest's flora after the nearby crack closes. At Drupers, believing Zangetsu might try to silence anyone who knows about the Yggdrasill Corporation's secrets, Mitsuzane convinces Kouta not to tell anyone of what they have learned until they know more of the company's intentions.
Although Mitsuzane also attempts to convince him to discard his Sengoku Driver so not to play into the company's hand, Kouta refuses, as he believes that it is the only means to fight the Inves. After watching Gaim defeat a group of high class Inves, Mitsuzane becomes conflicted. Elsewhere, Mai finds Kaito at a place where the Takatsukasa family shrine once stood before the Yggdrasill Corporation tore it and the surrounding forest down. She reveals to Kaito that she was the shrine maiden and tells him of her ideals before he scoffs them and leaves. Just after Kaito leaves her, Mai encounters the mysterious girl who tells her to forget about Kouta and Kaito and leave the city while she is still in control of her fate.
In the events that follow, after his defeat by Team Baron, Hase finds himself abandoned by his Raid Wild teammates. Jonouchi begins to work at the Charmant, hoping to align himself with Oren as Armored Riders, but Oren is still too enamoured with Zangetsu. Meanwhile, at the Yggdrasill Corporation's hologram room, Takatora is satisfied with the final testing of his new Genesis Driver and Melon Energy Lockseed. As the perfected Armored Rider Zangetsu Shin, Takatora tells Sengoku that the Beat Riders have now served their purpose.
==Cast==
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===Guest cast===
*Fans: , 
*Kaito Kumon (Child): 
*Mai Takatsukasa (Child): 
==Lockseeds==
*Lock Used:
**Gaim:
***Orange
**Baron:
***Banana
**Kurokage Troopers:
***Matsubokkuri
**Zangetsu Shin:
***Melon Energy
*Arms Change:
**Gaim:
***Orange Arms
**Baron:
***Banana Arms
**Kurokage Troopers:
***Matsubokkuri Arms
**Zangetsu Shin:
***Melon Energy Arms
==Notes==
*As part of Super Hero Time, this episode aired alongside episode 43 . The following episodes had taken a Christmas hiatus and returned to TV in time for the new year.
*Viewership: 3.9% 
*Closing Screen Lockseed Collection:
**Kamen Rider: Zangetsu Shin
**Lockseeds: LS-04 Melon, ELS-04 Melon Energy
*This episode begins the Yggdrasill Saga, the second story arc of the series.
*This is the first episode of the series where Gaim uses a Rider Kick in Orange Arms.
*Ten Kurokage Troopers are shown at the beginning, the most ever shown at a single time.
*This is the first episode that Mitsuzane doesn't transform into Ryugen since gaining his power in episode 4.
*This is the first episode that Gaim doesn't change Arms since the debut of his Pine Arms form.
*This episode has the longest time (30 seconds, more than 15 seconds preview in normal) preview in all of Gaim episodes.
==DVD releases==
Kamen Rider Gaim Volume 3 features episodes 9-12: The Monster Inves Capture Battle!, Rider Great Assembly! Revealing the Mystery of the Forest!, The Truth Behind the Christmas Game and Genesis Riders Appear! http://www.toei-video.co.jp/DVD/gaimu.html
DSTD08893-d.jpg|Kamen Rider Gaim Volume 3, DVD cover
Gaim DVD Volume 03.jpg|Kamen Rider Gaim Volume 3, Blu-ray cover
==External links==
*TV Asahi's official summary for 「新世代ライダー登場！」
*Toei TV's official episode guide for 「新世代ライダー登場！」
==References==
Category:New Kamen Rider Episode
Category:New Year Episode