Second Movement ♬ Prince Kiva

is the fourth episode of Kamen Rider Decade. It is the first half of the World of Kiva arc. It features the debut of Kamen Rider Decade Kuuga, Kamen Rider Decade Kuuga Dragon Form and Kamen Rider Decade Kuuga Titan Form.
==Synopsis==
to be added
==Plot==
Arriving in the World of Kiva, Tsukasa and company discover that the Fangires of this world have made a truce with the humans. However, when Tsukasa finds the Lion Fangire attacking a young woman, he transforms into Decade to fight him. Wataru, the King of the Fangire Race, witnesses this and becomes Kamen Rider Kiva to fight him with the aid of his Arms Monsters, forcing Decade to assume Kamen Rider Kuuga's Mighty, Titan, and Dragon Forms to counter. Yusuke manages to stop the fight, and the Swallowtail Fangire reveals that the young woman was actually a renegade Fangire. Yusuke reveals he has promised to help Wataru because he is uncomfortable with being the King. After meeting a mysterious man who is disgusted with the human/Fangire treaty, Tsukasa later encounters Kiva-la, who uses her power to send him into another world where he is attacked by Kamen Rider Kaixa. Back in the World of Kiva, after having fed on many humans, the Beetle Fangire arrives at Castle Doran with the intent to kill Wataru and take his place as the King.
==Rider Cards==
*Cards Used:
**Kamen Ride - Decade, Kuuga
**Attack Ride - Slash
**Form Ride - Kuuga Titan, Kuuga Dragon
**Final Form Ride - N/A
**Final Attack Ride - N/A
*Forms:
**Decade, Decade Kuuga Mighty Form, Decade Kuuga Titan Form, Decade Kuuga Dragon Form
Decade Kuuga E4.jpg|DecadeKamen Ride: Kuuga
Decade Kuuga Titan E4.jpg|DecadeForm Ride: Kuuga Titan
Decade Kuuga Dragon E4.jpg|DecadeForm Ride: Kuuga Dragon
==Cast==
* : 
* : 
* : 
* : 
* : 
* : 
* : 
* : 
===Guest stars===
* : 
* : 
* : 
* Girl: , 
* Woman: 
* : 
* : 
* : 
* : 
* : 
* : 
* : 
===Suit actors===
* Kamen Rider Decade: 
* Kamen Rider Kaxia: 
== Appearing monsters ==
* World of Kiva 
** Fangire: Bishop, Rook, Spider Fangire, Beetle Fangire
==Notes==
*As part of Super Hero Time, this episode aired alongside episode 1, following of .
*Viewership: 7.8%
*This episode contains a musical reference, much like the Kamen Rider Kiva series
**The musical note in the title refers to the occasional usage of musical symbols within some of the episode titles.
*Strangely, despite having murdered an innocent Fangire mid-way in the episode, Tsukasa is never punished for his actions, with the victim himself completely unmentioned afterwards.
*The scene where Decade is pitted into a fight with Kamen Rider Kaixa is a reference to episode 25 of Kamen Rider 555, where Masato fights the Rabbit Orphnoch in an upper box of a stadium, in which area is similar to.
*Upon trying to chase the Spider Fangire, Natsumi exclaims "Let's Henshin!", which foreshadows the transformation call for Go Shijima (Kamen Rider Mach) five years later.
==DVD releases==
Kamen Rider Decade Volume 1 features episodes 1-5: Rider War, The World of Kuuga, Transcendence, Second Movement ♬ Prince Kiva and The Biting King's Qualifications. http://www.toei-video.co.jp/DVD/sp21/decade.html
Blu-ray Box comes with all 31 episodes.
==References==
==External links==
*TV Asahi's official summary for ｢第二楽章♬キバの王子｣
*Toei TV's official episode guide for ｢第二楽章♬キバの王子｣
Category:Kamen Rider Decade
Category:Episodes
Category:Crossovers