Cho Kamen Rider Den-O & Decade Neo Generations: The Onigashima Warship

is a Japanese superhero Tokusatsu crossover film between Kamen Rider Den-O, Kamen Rider Decade and Kamen Rider Kiva, and the first film to be part of the Cho Den-O Series. In the film, Tsukasa assists the DenLiner crew in correcting an alteration in the timeline.
The movie catchphrase is 
==Plot==
Taking place after the events of Kamen Rider Decade episode 15, under the impression that they saved the World of Den-O, Tsukasa Kadoya and company begin their journey to the World of Kabuto when they are halted by Sieg who presents them a manuscript that detailed the legendary Oni Conquest with Momotaros' image on it. As this occurred, the Tarōs mysteriously vanish from the DenLiner as they are about to help Kotaro Nogami out with the true threat to their world.
Meanwhile, in the year 1980, a boy named Yu encounters Mimihiko and then Yu is possessed by Deneb who gets him away from the Gelnewts before New Den-O arrives to cover his escape. Deneb then brings Yu to Ryotaro, revealing Mimihiko to be one of the Oni of legend and is searching for the Trump Stone which Yu possesses. Seeing Yu reluctant to give them the item, Ryotaro leaves him with a DenLiner admission ticket should he change his mind. The next day, Yu runs off after learns that his father wants him to leave with him. Learning he is hunted by the Gelnewts, Yu tries to outrun the monsters on his bike before managing to reach the sands of time where the DenLiner is waiting for him. Giving them the Trump Stone, Yu wishes to be remain on the train. Though Owner warns him their intent to go back in time to fight the Oni, Yu refuses to turn back. After Yu is informed on the effects the distortions had on Ryotaro and Yuto, the former regressed to a child while the latter has mysteriously disappeared, the DenLiner arrives at the Junction Point where they meet the Stationmaster who reveals a 1935 newspaper documenting that Urataros, Kintaros, and Ryutaros caught a band of rice thieves; they have been possessing the bodies of another trio named Jiro, Ramon, and Riki (the Arms Monsters of Kamen Rider Kiva). Traveling to that time, the kids find Tsukasa who offers his aid. Kotaro is reluctant to accept his help until Tsukasa reveals the scroll Sieg brought with him that has Momotaros on it.
Arriving in the Muromachi period, DenLiner gang arrive and defeat the Gelnewts, meeting Toki and joining her at the village's pleas. Once at Onigashima, New Den-O and the villagers catch the Gelnewts off guard as the kids find Momotaros. Deneb asks Yu to form a contract with him, at least until Yuto returns, to be able to assist the others in. Den-O and Deneb join the fray as Kuchihiko arrives and assumes his Rider form Goludora. During the fight, Toki takes a hit meant for Yu before New Den-O is defeated. Using Kotaro as a bargaining chip, Goludora gives them a day to accept his demands for both the Trump Stone and the DenLiner. The next day, after planning it out, the DenLiner gang gives up both the Trump Stone and the DenLiner. Once the Owner and Naomi are evicted, Kuchihiko ditches Kotaro as he enters the DenLiner to reach his brother in the present time period. However, his journey is staged as the evicted "Owner" is the Stationmaster in disguise as the real Owner pulled the emergency break as everyone else has erected a massive set designed to look like modern Tokyo. Once the DenLiner staff and the Stationmaster enter the train, with Kohana guarding the door, Den-O, the Tarōs, and New Den-O battle Goludora and the Gelnewts with Toki providing backup, until she is wounded in battle.
However, Diend appears long enough to summon Kamen Riders Ouja, G3, and Caucasus as wild cards in the fight and Kuchihiko reassembles the Oni's Trump Stone with Mimihiko activating the Demon's Warship in the present and using it to return to the past. The Oni Brothers are able to defeat them until Tsukasa and Sieg arrive, allowing Den-O to assume Wing form as Momotaros possess Tsukasa to fight as Decade. The other Tarōs do the same with Diend's summoned Riders (Urataros with G3, Kintaros with Caucasus, and Ryutaros with Ouja) while Deneb enters Kotaro, enabling Kamen Rider New Den-O to assume Vega Form. Helping Toki fire her arrow, Yu manages to break the Demon's Warship’s anchor to give the Kamen Riders time to set up a way to end the fight. At Decade's suggestion, Ryotaro forms Kamen Rider Den-O Super Climax Form with the Tarōs and Sieg. Cho-Den-O and Decade manage to overwhelm the Oni Brothers with New Den-O Vega Form and Teddy's aid. After Shilubara sacrifices himself to protect his brother, an enraged Goludora enters the Warship and engages the DenLiner in a battle with Decade taking his leave as the DenLiner gang manages to sink the Warship from the inside out as Kamen Rider Den-O Sword finishes Goludora off with a Rider Kick. Soon after, Yu bids farewell to Toki as she is revealed to be his ancestor. Though offered a slight detour before they return to present, Yu turns it down as he wants to be back in his time. After they part ways, Deneb is dropped back in 2009 where he finds Yuto Sakurai waiting for him and it is revealed that he went by the name Yu as a child and they return to the ZeroLiner.
==Production==
Initially scheduled to be released in April 2009, Toei later announced that the film would be included in the new Cho Den-O Series. The first new cast member to be announced was gravure idol Akina Minami. The cast members of Den-O to return include the voice actors of the Tarōs, Sieg, and Deneb, as well as the actors portraying Naomi, Kohana, and Owner, among others (Toshihiko Seki, Koji Yusa, Masaki Terasoma, Kenichi Suzumura, Shin-ichiro Miki, Hochu Otsuka, Rina Akiyama, Tamaki Matsumoto, Yuichi Nakamura, and Kenjiro Ishimaru). Also to be featured in the film are several cast members of the current Kamen Rider Series Kamen Rider Decade and some of the cast members of Kamen Rider Kiva who are possessed by Tarōs.
==Characters==
===Kamen Riders===
Kamen Rider Den-O Sword Form	Momotaros/Ryotaro Nogami
Kamen Rider Den-O Rod Form 	Urataros/Ryotaro Nogami
Kamen Rider Den-O Ax Form 	Kintaros/Ryotaro Nogami
Kamen Rider Den-O Gun Form 	Ryutaros/Ryotaro Nogami
Kamen Rider Den-O Wing Form 	Sieg/Ryotaro Nogami
Kamen Rider New Den-O 	Kotaro Nogami
Kamen Rider New Den‑O Vega 	Deneb/Kotaro Nogami
Kamen Rider Decade 	Tsukasa Kadoya
Kamen Rider Diend 	Daiki Kaito
Kamen Rider G3 	Urataros
Kamen Rider Caucasus 	Kintaros
Kamen Rider Ouja 	Ryutaros
===Hikari Studio===
*Natsumi Hikari
*Eijiro Hikari
===DenLiner Crew===
*Owner
*Stationmaster
*Kohana
*Naomi
*Yu
*Yuto Sakurai
===Arm Monsters===
Garulu 	Jiro
Basshaa	Ramon
Dogga 	Riki
===Villains===
Goludora 	Kuchihiko
Shilubara	Mimihiko
*Gelnewts
==Cast==
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===Voice actors===
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===Suit actors===
*Momotaros/Kamen Rider Den-O, Kamen Rider Decade: 
*Kamen Rider Decade (sub): 
*Kamen Rider New Den-O, Deneb: 
*Urataros, Kamen Rider Diend, Kamen Rider G3: 
*Kintaros, Goludora, Kamen Rider Caucasus: 
*Ryutaros, Kamen Rider Ouja: 
*Deneb: 
*Sieg: 
*Teddy: 
*Shilubara, Gelnewt: 
==Form Changes and Collectibles Used==
===Rider Cards===
*Cards Used:
**Kamen Rider Decade:
***Kamen Ride: Decade
***Attack Ride: N/A
***Form Ride: N/A
***Final Form Ride: N/A
***Final Attack Ride: Decade
**Forms:
***Decade
**Kamen Rider Diend:
***Kamen Ride: Diend, G3, Caucasus, Ouja
***Attack Ride: N/A
***Form Ride: N/A
***Final Form Ride: N/A
***Final Attack Ride: N/A
**Forms:
***Diend
===Den-O Form Changes===
*Den-O: Sword Form, Axe Form, Gun Form, Rod Form, Wing Form, Super Climax Form
*New Den-O: Strike Form, Vega Form
==Songs==
Theme song
*
**Lyrics: Shoko Fujibayashi
*Composition & Arrangement: Shuhei Naruse
*Artist: : Momotaros (Toshihiko Seki), Urataros (Koji Yusa), Kintaros (Masaki Terasoma), Ryutaros (Kenichi Suzumura), Teddy (Daisuke Ono), the Owner (Kenjiro Ishimaru), Kotaro Nogami (Dori Sakurada), Naomi (Rina Akiyama), and Kohana (Tamaki Matsumoto)
==Notes==
*The Diendriver announcement of "KAMEN RIDE" is different from how its said in the show.
*Garulu, Dogga, and Bassha were briefly possessed by Urataros, Ryutaros and Kintaros in the 1930s whom ironically they are very similar to.
*Despite that this movie takes place between episodes 15 and 16, Yusuke does not appear in this movie.
*Tsukasa (as well as Kaito) is seen using Aurora Curtain to time travel, despite it being previously and following this explicitly showcased he and other dimensional travelers could not do so. Their capability to do this served as a central plot point in Decade's tribute arc to Den-O, which lead directly into this film. This sudden, unexplained ability would not be seen again until Kamen Rider Zi-O.
==References==
# ^ a b "ライダー史上初の快挙、大人気作の新＜超＞シリーズ化・決定新たな旅のレールは＜超・電王＞へ！映画「超・仮面ライダー電王＆ディケイド」の製作決定！". Retrieved on 2009-02-11.
# ^ "全国映画概況発表会見で、「仮面ライダー電王」新作発表?". Retrieved on 2009-01-30.
# ^ "仮面ライダー電王：映画「超・電王」で復活　アッキーナ出演も佐藤健は… - 毎日ｊｐ(毎日新聞)". Retrieved on 2009-02-10.
# ^ "Cast/Staff". Retrieved on 2009-03-08.
# ^ "Amazon.co.jp: 超Climax Jump: DEN-O ALL STARS: 音楽". Retrieved on 2009-04-01.
# ^ a b "超Climax Jumpな日 その1｜鳴瀬シュウヘイ オフィシャルブログ 「Shuhei Naruse blog」". Retrieved on 2009-04-22.
# ^ "超Climax Jumpな日 その5｜鳴瀬シュウヘイ オフィシャルブログ 「Shuhei Naruse blog」". Retrieved on 2009-04-22.
# ^ a b "超Climax Jumpな日 その3｜鳴瀬シュウヘイ オフィシャルブログ 「Shuhei Naruse blog」". Retrieved on 2009-04-22.
# ^ a b "超Climax Jumpな日 その2｜鳴瀬シュウヘイ オフィシャルブログ 「Shuhei Naruse blog」". Retrieved on 2009-04-22.
# ^ "超Climax Jumpな日 その4｜鳴瀬シュウヘイ オフィシャルブログ 「Shuhei Naruse blog」". Retrieved on 2009-04-22.
# ^ "超Climax Jumpな日 最終回｜鳴瀬シュウヘイ オフィシャルブログ 「Shuhei Naruse blog」". Retrieved on 2009-04-22.
== External links ==
* Cho-Den-O-01.jp - The official website for The Onigashima Battleship (Japanese)
Category:Kamen Rider Den-O
Category:Kamen Rider Decade
Category:Kamen Rider Movies
Category:Spring Movies
Category:Crossovers
Category:Cho Den-O Series