Famicom Mukashibanashi: Shin Onigashima - Zenpen is the first part of the Shin Onigashima story, released for the NES. Like its sequel, detailed gameplay information is limited in English sources, but it likely involved exploration and turn-based combat within a fantasy setting.  The original NES version came on a Data Cartridge, which was a variation of standard NES cartridges.  The game's setting and storyline draw upon Japanese mythology and folklore, focusing on the events preceding the game's sequel.

Famicom Mukashibanashi - Shin Onigashima - Zenpen (Japan) (DV 1)

Famicom Meijin Sen (Japan) (Rev A)