That emulator was by a group calling itself "Bloodlust software". These guys released a bunch of freeware games with gory theme. This include nesticle with the bloody hand as mouse cursor. I also remember a ball game with the balls replaced with severed heads and lot of blood splatters.
omoikane|2 years ago
https://en.wikipedia.org/wiki/NESticle
jj999|2 years ago
dancemethis|2 years ago
Genecyst as NESticle's sister can provide better context.
y-curious|2 years ago