This ROM hack comes as an IPS patch that can be applied to a legitimate dump of the user’s Sega Genesis or Mega Drive cartridge. The site hosting the Mortal Kombat Arcade Edition patch features ...

While the war was divided along the Genesis / Mega Drive and the Super Nintendo fronts, the battles were between games. Mortal Kombat was a bloody battle, but in the end, Sega won that one.

It's also the year that Sega released the Sega Mega Drive in Japan ... For example, because of internal restrictions, the Mortal Kombat series on Nintendo couldn't show blood.