Ninpo

In the Ninja Gaiden and Dead or Alive series Ninpo is a form of offensive and/or defensive magic used by Ninja. One of the most destructive forms of attack that Ninja have at their disposal the techniques for using Ninpo are written on ancient scrolls, which can be obtained in the Ninja Gaiden series, and powered by the ninjas’ Ki energy. The power of Ninpo techniques can be increased by using an item called the Jewel of the Demon Seal while items such as Dragon Scrolls, Ninjutsu Power-ups, Red Essences and the Spirit of the Devils item can increase and/or replenish Ki energy required to use Ninpo attacks.

Ninpo Items
A small red jewel that increases Ki power. A small purple jewel that increases the power level of Ninpo attacks by one level. Red energy-laden souls left over after enemies are dispatched., the replenishe Ki power. Energy that appears from Dragon Jewels. Coming in blue or red they replenish Ninjutsu Power by varying degrees. A scroll that appears from Dragon Jewels it increases the limit for Ninjutsu Power.
 * Spirit of the Devils
 * Jewel of the Demon Seal
 * Red Essence
 * Ninjutsu Power
 * Dragon Scroll

Ninpo Techniques
A technique that allows the user to control fire at will, first enveloping the user in flame and then shooting a fireball out in front of them. A technique that allows the user to quickly change the atmosphere around themselves, creating a whirlwind containing sharp shards of ice; it traps surrounding enemies in an ice storm. A technique that allows the user to amplify their internal bioelectric current and blast it around the surrounding area. A technique that allows the user to generate a large blast of energy from their hands. A technique that allows the user to draw in energy from the surrounding area and expel it in a large blast of energy around themselves. A technique that shoots three rings of fire upward at an angle. A technique that converts the users’ rage into swirling balls of fire, destroying anything in the user’s path. A technique that uses the user’s built-up Ki power to unleash vacuum waves above and below themselves.
 * The Art of the Inferno
 * The Art of the Ice Storm
 * The Art of the Inazuma
 * The Torn Sky Blast
 * The Art of the Raging Mountain God
 * Art of the Fire Wheel
 * Invincible Fire Wheel
 * Vacuum Wave Art
 * Other Ninpo abilities include Kasumi’s singular hand-blast ability (seen in DOA 3) and the teleportation and transformation abilities of some of the ninja characters (such as Kasumi and Ryu Hayabusa).