The Ninja
It's typical of a run-and-gun game, like Commando and Ikari Warriors, in which the player must shoot enemies and defeat a boss. The enemies include samurai, ninja and dogs.
Story
On your journey to Ohkami Castle you'll fight against evil ninja warriors. Once there, you'll have to destroy their leader Gyokuro. Only then will you be able to rescue the princess from her prison in the castle.