Interquels and Remakes
Ninja Gaiden series
Sonia is a CIA agent and the female protagonist of Ninja Gaiden II.
She tracks down Ryu to Sky City and asks for his help. Ryu stops her from being captured initially but the greater fiends are eventually able to capture her. Ryu descends into the underworld to save her and defeats the greater fiend Alexei in order to do so. The two starts a relationship afterwards.
- Main article: Sonia
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Ninja of the Future: A Futuristic ninja costume, usable after completing Ninja Gaiden on any difficulty. Usable only by selecting and holding the Plasma Saber. It has also been said to be be wearable…
The Dark Dragon Summon Ninpo is the ultimate attack used by the Devil Incarnate. It only appears in Ninja Gaiden Black, Ninja Gaiden Sigma and Ninja Gaiden Sigma Plus during the final battle.
- 1 Descripti…
There should be a Animated Series that takes place after the events of Ninja Gaiden 3