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Ninja Gaiden Wiki


Ki ( Ki?) is spiritual life energy that ninja and other beings use to perform various supernatural effects, including the casting of Ninpo or performing more physical techniques.

Classic series[]

Ninja Gaiden[]

In the NES Ninja Gaiden "ki" appeared as Spiritual Strength and was represented with (Shinobu) and a number. Each technique or ninpo equipped costs a set amount of ki. To recover his ki, Ryu Hayabusa must collect spheres marked with 忍, which come in two varieties: blue which recovers 5 and red which recovers 10.

Item 忍 Cost
Throwing Star 3
The Art of the Fire Wheel 5
Windmill Throwing Star 5
Jump & Slash Technique 5

Ninja Gaiden II: The Dark Sword of Chaos[]


Ninja Gaiden III: The Ancient Ship of Doom[]


Ninja Gaiden Shadow[]


Ninja Gaiden X[]


Modern series[]

Ninja Gaiden[]


Ninja Gaiden: Dragon Sword[]


Ninja Gaiden II[]


Ninja Gaiden 3[]


Standalone games[]

Game Gear Ninja Gaiden[]


Master System Ninja Gaiden[]


Ninja Gaiden Clans[]


Trivia[]

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