Note about the prototype:
This Hillsfar prototype was sold on Ebay "back in the day" for a very low price, probably $40 or $50. The game is said to be a translated version of the Japanese release. The cart is dated 12/92, which is the same date of the other Hillsfar prototype that was found.
From the Publisher
Direct your character into the world city of Hillsfar for fast battle action and challenging fantasy adventue! Hillsfar has been invaded by Maalthir, the self-proclaimed First Lord, who rules the region with his powerful magic and his ruthless guards, the Red Plumes. In the AD&D game tradition, you must make many choices in the roles you play. Each profession has its own missions. Intelligence must guide your characters with dexterity and charm to battle minotaurs, orcs and armed guards; test your skills in the gladiators' colliseum or archery range.