Ninja Gaiden III: The Ancient Ship of Doom, known in Japan as Ninja Ryūkenden III: Yomi no Hakobune (忍者龍剣伝III 黄泉の方舟?, lit. "Legend of the Ninja Dragon Sword III: The Ark from Hades"), released in 1991, is the third installment of the Ninja Gaiden trilogy for the Nintendo Entertainment System. It was later ported in 1993 to the Atari Lynx, and in 1995 to the Super Nintendo in Ninja Gaiden Trilogy. Unlike the previous installments, this game wasn't released in Europe for the NES, but it was for the Lynx, under its North American Ninja Gaiden title instead of the European Shadow Warriors labelling.
Set sometime between the events of the original Ninja Gaiden and Ninja Gaiden II: The Dark Sword of Chaos, the plot explores the exploits of Ryu Hayabusa, who must clear his name after being framed for the apparent murder of his CIA partner, Irene Lew.
Source: Wikipedia, Ninja Gaiden III: The Ancient Ship of Doom , available under the CC-BY-SA License.