Ninja Gaiden III: The Ancient Ship of Doom

1992 Tiger LCD handheld based off the 1991 platform console game. Some time has passed since the defeat of Ashtar and the resurrected Jaquio, and Irene Lew has received a new mission to complete. She is to observe a strange factory that has been constructed recently for an unknown purpose, and investigate it. She proceeds to reconnoiter it, but is intercepted and apparently assassinated by her friend Ryu Hayabusa...except it isn't Ryu. It is an imposter. The real Ryu, angered over her death, and the subsequent false accusation that he murdered her, continues her mission and proceeds to investigate the factory.