At first he guards Bymon's Place, you fight him, and get the Armor of Guile. Then he appears in the Town with Naga's Path, he tries to tell you the correct path to Rushifell's Palace. The talk is optional/not needed. From town go right all the way until you see trees. To the right of the trees the True Path. He also appears at the end of the game in front of King Darkoan, and thanks you. He is based on the Petite Devil from Ghosts 'n Goblins
His sprite
The "Guard"
The Fight
Stone path to where friend is
The meeting spot
True Naga's Path