In "Einhander," released in Japan in 1997 and North America in 1998 for PlayStation, the player must help save Earth from vicious assaults by the moon. (Photograph provided by the Smithsonian American Art Museum)

In "Einhander," released in Japan in 1997 and North America in 1998 for PlayStation, the player must help save Earth from vicious assaults by the moon. (Photograph provided by the Smithsonian American Art Museum)