Ninja Ryukenden II - Ankoku no Jashinken © 1990 Tecmo, Limited.
One year after the ninja dragon known as Ryu Hayabusa defeated The Jaquio, a new enemy known as Ashtar seeks to conquer the world with an artefact known as the dark sword of Chaos. It's up to Ryu Hayabusa to put an end to Ashtar's plans.
* Infinite Health : At title screen, quickly press Up(x3), Down(x3), A, B, A, B, Select, Start. If not done quickly the code won't work. If you did it right, the game will begin a chime sound. Now, press Right, Left, Right, Left, B, A. A word will come up saying INVINCIBLE.
* Sound Test : When the title screen appears press and hold Up+Left+Select+A+B. Then tap the Start button.
* Musicruise Sound Test : Let the title screen fade to black and press Start, then do this a second time. Then press and hold Up+Left+Select+A+B. Then tap the start button.