Otoya Kurenai (A.R. World)

''For the original version of the character see Otoya Kurenai. For the original Kamen Rider Dark Kiva see King''

Otoya Kurenai (紅 音也, Kurenai Otoya), Also known as Kamen Rider Dark Kiva, is a alternative version of Otoya Kurenai from NEGA's World. This Otoya shares many characteristics with his other self of the world Kiva, however, Negative Otoya is a cruel and ruthless dictator who plunged his own world to oppression under the power of his Dark Riders (Orga, Ryuga, Dark Kabuto and Alternative). At the end of the story arc, Otoya remains as the last Dark Rider in Nega World.

Dark Kivat Belt
The Dark Kivat Belt (ダークキバットベルト, Dāku Kibatto Beruto) is Otoya's means of transforming into Dark Kiva.

Similar to his other self of Kamen Rider Kiva, Otoya has Kivat-bat the 2nd bite him (who in this version, does not seems to have self-awareness), and then perch upside down on the Power Roost (パワールースト, Pawā Rūsuto) of the belt's Dark Kibuckle (ダークキバックル, Dāku Kibakkuru) to complete the transformation, separating from the belt when certain conditions demand for it like Fuestle-blowing. The Dark Kivat Belt also has six Fueslots to hold the six Fuestles.

Fuestles
Like Kiva, Dark Kiva accesses his arsenal through whistles on his belt called Fuestles (フエッスル, Fuessuru), which he gives to Kivat the 2nd to blow into to evoke a power-up. Compared to Kiva's Fuestles, his predecessor's emit at a lower pitch.


 * Dark Wake Up Fuestle (ダークウエイクアップフエッスル, Dāku Ueiku Appu Fuessuru): The Dark Wake Up Fuestle allows Dark Kiva to perform one of three finishing moves depending on the frequency.
 * Darkness Hell Crash (ダークネスヘルクラッシュ, Dākunesu Heru Kurasshu): Referred to by Kivat-Bat the 2nd as "Wake Up One," the Darkness Hell Crash is a punch with the force of 65t. When performed, day turns into night with blood red fog. Dark Kiva then does a flying punch with his right arm.
 * King's Burst End (キングスバーストエンド, Kingusu Bāsuto Endo): Referred to by Kivat-Bat the 2nd as "Wake Up Two," the King's Burst End is an Emperor Moon Break-style kick with the force of 180t and green energy blades.
 * King's World End (キングスワールドエンド, Kingusu Wārudo Endo): Referred to by Kivat-Bat the 2nd as "Wake Up Three," a self-destructing attack with an unknown level of destructive power. As the name implies, it could destroy everyone nearby. However, it was never used.
 * Garulu-Seal Fuestle (ガルルシールフエッスル, Garuru Shīru Fuessuru): This Fuestle seals Garulu by emitting a continuous sound, creating an energy sphere that captures Garulu and converts him into the Garulu Saber.
 * Basshaa-Seal Fuestle (バッシャーシールフエッスル, Basshā Shīru Fuessuru): This Fuestle seals Basshaa by emitting a continuous sound, creating a energy sphere that captures Basshaa and converts him into the Basshaa Magnum.
 * Dogga-Seal Fuestle (ドッガシールフエッスル, Dogga Shīru Fuessuru): This Fuestle seals Dogga by emitting a continuous sound, creating a energy sphere that captures Dogga and converts him into the Dogga Hammer.
 * Doran Fuestle (ドランフエッスル, Doran Fuessuru): This Fuestle summons Castle Doran. However it was never used.
 * Buroon Fuestle (ブロンフエッスル, Buron Fuessuru): This Fuestle summons Buroon from Castle Doran. However it was never used.

Trivia

 * Unlike the original Otoya of Kamen Rider Kiva, this Otoya did not die after transforming into Dark Kiva, indicating that he may possibly be a Fangire, though his future is unknown after the third transformation, implying that he might have indeed died.