"A samurai would never sneak or cheat. A samurai would never assassinate. A samurai would never sabotage. But a ninja would sneak up and stab you in the back!"
― Stick (Marvel Comics)
"Ninjutsu was originally designed for guerrilla warfare, emphasizing deception, trickery, ambush, sabotage and most of all pragmatism. Despite its various changes through time, its emphasis on pragmatism alone has never changed."
― Issei Hyodou (Highschool DxD)
The ability to use Ninjutsu, the historic style of martial arts, tactics, strategy, and espionage of unconventional and guerrilla warfare. Those who practice this style are known as Ninja, male ninja being shinobi and female ninja being kunoichi.
User can utilize Ninjutsu, the historic style of martial arts, tactics, strategy, and espionage of unconventional and guerrilla warfare. Contrary to popular culture, real-life ninja were mainly spies, saboteurs, and assassins that rarely appeared on the battlefield. Depending on the school and source ninjutsu focuses on different disciplines, the most common of which was the eighteen disciplines of the Bujinkan:
Fictional ninjutsu puts more focus on traditional and spiritual concepts such as one's life-force, as well as the elements and magic to perform effective techniques that were given to ninja in various stories.
Ayane (Dead or Alive), the head of the Hajin Mon sect of the Mugen Tenshin Clan.
Kasumi (Dead or Alive)
The Shadow Armor allows X (Mega Man X series) to perform ninja-like movements such hanging from ceilings.
Raiden (Metal Gear)
Hanzo Hasashi/Scorpion (Mortal Kombat)
Sub-Zero (Mortal Kombat), Grandmaster of the Lin Kuei.
Genji Shimada (Overwatch)
Kurenai (Red Ninja: End of Honor) is a kunoichi skilled various ninja skills, especially her wire weapon.
Rioichi Cooper (Sly Cooper), ninja master of the Cooper Clan.
Espio the Chameleon (Sonic the Hedgehog) is a master of ninjutsu.
Taki (Soulcalibur) is a kunoichi skilled in delivering unpredictable and deceptive strikes.
Strider Hiryu (Strider)
The Dragon Sword (Ninja Gaiden) is Ryu Hayabusa's weapon of choice.
The Koopa Bros (Super Mario)
Kai Leng (Mass Effect 3)
A Garo (The Legend of Zelda)
Yuffie Kisaragi (Compilation of Final Fantasy VII)
Sheik (The Legend of Zelda)
Tae Kwon Crow/Hawkmongous (Skylanders Trap Team)
Stink Bomb (Skylanders Swap Force)
Ninja Master (Valkyrie Crusade)
Raidou (Dead or Alive) a dangerously powerful Tenjinmon Ninjutsu master, his skill is superior to even Hayate.
Ayane's mentor Genra (Dead or Alive) is a highly powerful Hajinmon Ninjutsu master.
Ninja Kirby (Kirby Series) lives up to his name.
Ninjas (Final Fantasy XIV A Realm Reborn)
Ninjas Clan (Mini Ninjas)
Hiro (Mini Ninjas) is one of the youngest of the six ninjas in his clan, only one of them, as well as the only ninja in three hundred years, to be able to control Kuji magic.
Futo (Mini Ninjas) is the second ninja to be accessed in Mini Ninjas, distinguished by his size and brute strength.
Suzume (Mini Ninjas) is a female ninja, who wields a wooden flute for a pass-time and a weapon. She was the first ninja needed to be saved in Mini Ninjas.
Shun (Mini Ninjas) is one of the six playable ninjas in Mini Ninjas, his weapon of choice is a bow. He is the second ninja needed to be saved, after Suzume.
Tora (Mini Ninjas) is a claw-wielding ninja who believes he is a tiger, and has tiger-like mannerisms that stemmed from infancy that he incorporates into his fighting. He is the third ninja needed to be saved, after Shun and Suzume.
Kunoichi (Mini Ninjas) is one of two female ninjas in Mini Ninjas, who's weapon is a naginata spear. She is the last ninja needed to be saved.
Ninja Master (Mini Ninjas) is a wise elderly ninja who found all six ninjas at very young ages, and helped them to find their unique skills and develop into proficient ninjas.