Some fatalities can only be done on certain stages. Perform the following fatality by following the corresponding task:
STAGE - HOW TO PERFORM Armory - Execute the Crusher death trap in the Armory on Kai. You will see his severed head is clearly smiling. Bell Tower - On the lower level of the Bell Tower stage, wait until "Finish Him" appears then uppercut. Make sure you are not near the bell. Your opponent will fall through the floor into a spike, slide down, then have his arms and legs get cut off by four sharp blades on the bottom of the spike. Then a rat will appear and steal a leg. Prison - In the Prison stage, where you see Sektor closing the doors, wait until "Finish Him" appears then uppercut. Make sure you are under the fan in the middle of the stage. Your opponent will launch up and get splattered across the room, with blood and guts everywhere. Subway - Hit your opponent onto the tracks to get them run over.