On top of this only asthetically being what it was advertised, (which, admittedly, DOES count for some people,) the Famicom predates the PC-9800 series by 1 year, and stayed in production for 3 years after the PC-98 was discontinued. so even if this WAS actually for NES, it wouldn't qualify as a demake because the NES is older hardware.
That said, gameplay isn't awful.