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A ninja named Ryu Hayabusa starts a quest to discover his father's killer.
Ninja Gaiden (1988)
Ashtar, emperor of the World of Chaos, wants to open Gate of Darkness. Only Ryu Hayabusa can stop it.
Ninja Gaiden II: The Dark Sword of Chaos
Ryu Hayabusa starts a quest to discover Irene Lew's killer after he is blamed of her death.
Ninja Gaiden III: The Ancient Ship of Doom
The player controls Ryu Hayabusa, who must save New York City from the forces of Emperor Garuda, a servant of Jaquio.
Ninja Gaiden Shadow
Master ninja Ryu Hayabusa goes on a quest to recover a stolen sword and avenge the slaughter of his clan.
Ninja Gaiden (2004)
Ryu Hayabusa has rebuilt the Hayabusa Village. When fellow villager and kunoichi, Momiji, is kidnapped by the Black Spider Ninja Clan, he is forced to find her, while uncovering the secrets behind the mysterious Dark Dragonstones and their relation to the Dragon Lineage.
Ninja Gaiden: Dragon Sword
Ryu Hayabusa hunts down the Greater Fiends who threaten to destroy the world by unleashing the Archfiend.
Ninja Gaiden II
Ryu Hayabusa is called upon by the Japanese Self-Defense Force to deal with a terrorist group led by the mysterious alchemist, the Regent of the Mask.