The Art of the Raging Mountain God (忍法･覇神震山, Ninpo: Hajin Shinzan; "Ninja Art: Supreme Deity Quaking Mountain") is the Ninpo used by Ayane in Ninja Gaiden Sigma 2 and Ninja Gaiden 3: Razor's Edge.
A secret and most powerful Mugen Tenshin Hajimon technique. Chanting the incantation and performing the gestures imbues the body with the aura of all nature and creation, allowing them to release an earthquake-like shock wave that pulverizes surrounding enemies. The actual amount of aura generated is directly proportional to the psychic energy of the caster; a powerfully focused individual can use it to move heaven and earth, while a less spiritually advanced individual may find themselves sucked into the raging vortex of pure energy generated by their own spell.
This technique was first seen used by Ayane in the ending FMVs of Dead or Alive 4 where Ayane uses it counter a trap set by DOATEC soldiers. Since then it has become a staple technique of hers, reappearing in the fanmade Dead Fantasy series; again used by Ayane. It wasn't until Ninja Gaiden Sigma II, however, that the technique was actually named.
In Ninja Gaiden Sigma II/Plus, this ninpo is useful when surrounded by enemies, as it knocks back all enemies within the radius and on lower levels, it will delimb enemies very easily while on higher levels, it will kill some normal enemies.
The Ninpo works in the same way in Ninja Gaiden 3: Razor's Edge.
- In Ninja Gaiden Sigma II, Ayane will chant what seems to be "On Basara yakusha un". Basara means Vajra.