Samurai Sword (1988)

"When the dark priest Soron threatened to engulf the world in shadow, heroes and wizards alike rose against him. All were defeated. But a lone warrior still stands..." You play the role of a samurai that must destroy the forces of Soron. You find, however, that you cannot defeat him alone, so you must find a light mage who will aid you on your quest, and most importantly, the sacred weapon known as the Samurai Sword.