Drop.Off, a US release for the NEC PC-FX, is likely an action or puzzle game based on its title. The gameplay may revolve around dropping objects or characters, potentially with a strategic or timing component.  It is hard to find detailed information about this game since it appeared on a niche console; however, it gives a glimpse into the variety of genres available on the PC-FX.  Unfortunately, there is no readily available information on the original developer or publisher.

Drop.Off (USA)

Dragon Spirit (USA)