Ninja Gaiden II: The Dark Sword of Chaos (1990)

A year after the events of the original Ninja Gaiden, a new villain named Ashtar receives word of Jaquio's defeat. Ashtar uses this opportunity to hatch a new plan to plunge the world into darkness. The ninja, Ryu Hayabusa, hits the trail to destroy all manner of vile creatures entering the world while fighting his way to destroy Ashtar, his Dark Sword of Chaos, and whatever else is behind the evil.