Human Beast Combination Transformation: Double-Headed Wolf[1]
Name
Kanji	人獣混合変化・双頭狼
Rōmaji	Jinjū Konbi Henge: Sōtōrō
Literal English	Human Beast Combination Transformation: Double-Headed Wolf
English TV	Inuzuka Style: Man Beast Transformation Combo: Two-Headed Wolf
Other	Inuzuka-Style: Human Beast Combination Transformation: Double-Headed Wolf (犬塚流・人獣混合変化・双頭狼, Inuzuka-Ryū: Jinjū Konbi Henge: Sōtōrō)
Debut
Manga	Chapter #203
Anime	Naruto Episode #120
Game	Naruto: Ultimate Ninja 3
OVA	Naruto: Gentle Breeze Chronicles the Film: Naruto, the Jinni, and the Three Wishes 'ttebayo!!
Appears in	Anime, Manga and Game
Data
Classification	Ninjutsu, Collaboration Techniques
Rank	B-rank
Class	Supplementary
Other jutsu
Parent jutsu	Combination Transformation
Derived jutsu Fang Wolf Fang Super Fang Wolf Fang
Users Kiba Inuzuka Akamaru

A Combination Transformation where man and beast become a single entity. It is a specialty of the Inuzuka clan, a clan that has been walking side by side with ninken for generations. They coalesce into a bicephalous wolf, thus drastically increasing their power. In their direct attacks, they demonstrate great efficiency. Furthermore, using techniques in addition to this gives birth to an extraordinary power of destruction.

Trivia

• In the manga and anime, Kiba calls this technique by its full name, Inuzuka-Style: Human Beast Combination Transformation: Double-Headed Wolf (犬塚流・人獣混合変化・双頭狼, Inuzuka-Ryū: Jinjū Konbi Henge: Sōtōrō). The databook entry for this technique drops the "Inuzuka-Style" part.

References

1. ↑ Second Databook, page 234