This is a revision of Final Fantasy Mystic Quest. The 'Rev A' designation suggests a later print run or update that may include minor bug fixes or improvements to the original release.  The gameplay and overall story remain consistent with the original version; however, subtle differences might exist in terms of performance or minor gameplay elements. Square (now Square Enix) was the developer and publisher.

Final Fantasy - Mystic Quest (USA) (Rev A)

Fighter's History (USA) (Rev A)