Xanadu: Legend of Dragonslayer 1988 ザナドゥ ドラゴンスレイヤー伝説

The evil magician Reichswar has killed the King to gain possession of a magic crystal; now he means to use its power to rule the whole Xanadu. The princess Rieru is kidnapped. One brave young warrior, wielding the magic blade Dragonslayer, goes to her rescue.