Fire Release: Intelligent Hard Work[1]
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Name
Kanji	火遁・頭刻苦
Rōmaji	Katon: Zukokku
Literal English	Fire Release: Intelligent Hard Work
Viz manga	Fire Style: Searing Migraine
Other	Fire Style: Cranium Carver
Debut
Manga	Chapter #335
Anime	Naruto Shippūden Episode #84
Game	Naruto Shippūden: Ultimate Ninja Heroes 3
Appears in	Anime, Manga and Game
Data
Classification	Ninjutsu
Type	Fire Release
Rank	B-rank
Class	Offensive
Range	All ranges
Hand seals	Rat → Dog → Tiger
Derived jutsu
Users Kakuzu

Kakuzu's fire-element mask fires a small fireball that erupts into a giant fire-storm after making contact with a surface, causing widespread destruction to the area. Since the flames travel along the ground, and cover such a wide area this is a difficult technique to evade. When combined with Wind Release: Pressure Damage, this technique is amplified to the point of being able to evaporate a large amount of water in an instant.

Trivia

• Like the rest of Kakuzu's techniques, the name of this technique comes from the legendary mecha anime "Mobile Suit Gundam" (機動戦士ガンダム, Kidō Senshi Gandamu). The name Zukokku was taken from the Gundam MSM-07 Z'Gok (ズゴック, Zugokku). The name was altered slightly and given kanji to create the name of this technique.

References

1. ↑ Third Databook, page 236