Ninja Gaiden II: The Dark Sword of Chaos is an action platformer made for the NES by Tecmo and a direct sequel to the NES version of Ninja Gaiden. The story continues off one year after the defeat of Jaquio, where his boss Ashtar decides to finish what he started and open the Gates of Darkness so he can take over the world. It's up to top ninja Ryu Hayabusa to save the world once again with the help of a few government operatives. Just like the first game, it is brutally difficult, but it does have some wonderful music.

J.Y & aiqiyou, and YinZhiWang in this movie improve on the previous one by 24 frames thanks to new optimizations for the boss fights.