"The NEC PC-88VA was compatible with the PC-8801 and also had a V3 mode that operated in 16bit mode and allowed to run MS-DOS like OS.
This machine had sprites for games in character mode. High quality games such as R-TYPE were released using this mode.
Unfortunately this machine had no success and was replaced by the PC-88VA2/VA3 series in 1988." (old-computers.com)
Download from Megaupload:
NEC PC-88VA - BIOS (TOSEC-v2006-05-06)
NEC PC-88VA - Games (TOSEC-v2007-01-08)