The Imperial Sword Killing the Devil

Five men venture into a hidden cave to find a treasure map After they have encountered the dangers of the cave body melting acid a flying minidragon living skeletons the two last survivors finally find the treasure map inside a golden Buddha One of them falls into a pit and the other gets caught by ninjas as he tries to escape with the map while the cave explodes After escaping from the ninjas he meets a princess to learn the imperial sword technique in order to defeat the devil