Ninja Gaiden 2: The Dark Sword of Chaos Cheats and Tips

If you are struggling to progress in the game enter the following code at the 'Title' screen (quickly otherwise it will not work). Press Up, Up, Up, Down, Down, Down, A, B, A, B, Select, Start. If you have etered the code correctly in the time allowed you will hear a chime and if you then press Right, Left, Right, Left, B, A the word INVINCIBLE will appear on screen as confirmation that the cheat has been enabled.

Here's a useful little trick that can give you an infinite amount of lives. When you get near the end of stage 4-2 you will see the extra life icon. Get it and then go back up the ladder and leave that area. When you return the extra life icon will be there again. Get as many extra lives as you want by repeating this process.