This is a revised version of the Japanese NES RPG, Hikari Shinwa - Palthena no Kagami. The 'Rev 1' designation indicates a later release that likely incorporates bug fixes or minor gameplay adjustments compared to the original version.  While it likely shares the same core plot and mechanics, Rev 1 may improve on certain aspects of the original release. Further information is needed to specify the exact improvements and the developer responsible for the revision.

Hikari Shinwa - Palthena no Kagami (Japan) (Rev 1)

High Speed (USA)