Ninja Gaiden
In-game reset
Pressing Start + Back while playing the game will return you to the main menu.
Skip FMV sequences
Hit Start, A, Start to skip a cut scene.
Classic Ninja Gaiden mini-game
You have to give 50 scarabs to Muramasa in order to unlock the original Gaiden. You don't need to do it in one shot, you can do it even after you beat the game. You'll get the Ninja Gaiden disk in the arcade machine at Han's Bar.
Classic Ninja Gaiden 2: The Dark Sword Of Chaos mini-game
Acquire a "Master Ninja" rank on every level while playing on normal.
Classic Ninja Gaiden 3: The Ancient Ship Of Doom mini game
Acquire a "Master Ninja" rank on every level while playing on hard or very hard.
