Mortal Kombat 1 is gearing up to introduce Ghostface and franchise co-creator Ed Boon is celebrating Halloween by showing off some new footage of the masked killer in action. The haunting image of the Ghostface mask has helped make the Scream franchise one of the most iconic horror series of all time, so it stands to reason that Mortal Kombat would want the murderer to join its roster. They’ll enter the ranks of other popular villains like Jason Voorhees, the Xenomorph, and the Predator, who have all been guest fighters.