|Literal English||Shell Spear|
|Manga||Volume #60, Chapter #571|
|Anime||Naruto Shippūden Episode #329|
|Game||Naruto Shippūden: Ultimate Ninja Storm 3|
|Appears in||Anime, Manga, Game|
|Classification||Tailed Beast Skill, Taijutsu|
Isobu (or Yagura while fully transformed into Isobu) can roll into a ball and bulldoze its opponents, making full use of its many spiky protrusions in a manner similar to the Akimichi clan's Spiked Human Bullet Tank. This manoeuvre can also be used to escape attacks.