There is an evil Serpent on the 16th level of a dungeon, and you are on the first level. Grab your Swords and start to fight all the way down to the Serpent to slay him and save the world (how it works, we do not know). A great old-school NES RPG!
NOTE: All photos depict good condition items only; actual product may vary.
Used Swords and Serpents (poor box, poor instructions)