|Earth Release: Hardening Technique|
|Rōmaji||Doton: Kōka Jutsu|
|English anime||Earth Style: Petrifying Jutsu|
|Movie||Naruto: Shippūden the Movie|
|Class||Offensive, Defensive, Supplementary|
|Range||Short to Mid range|
By utilising earth-based chakra, the user creates an armour of rock that encases their body. The armour can also be used to create extendable weapons to strike a target with.