Each character has multiple fatalities that they can perform at the end of the match when you beat your opponent in Mortal Kombat 9 (2011 version) for the PS3 and Xbox 360.
This is the list of fatalities, and the babality and stage fatality for Cyrax.
These moves can be unlocked and added to your moves list by performing them in either Arcade Mode or Versus Mode.
Check out these complete fatality guides for more finishing moves:
Fatalities and babalities for Mortal Kombat on Xbox 360
Fatalities and babalities for Mortal Kombat on PS3
Cyrax’s Fatalities & Finishing Moves
Xbox 360
Buzz Kill — Forward, Down, Forward, Back, Y when touching the opponent
Nothing But Net — Back, Down, Back, Forward, X in jumping distance
Babality — Down, Forward, Back, Y in jumping distance
Stage Fatality — Down, Up, RT at close range
PS3
Buzz Kill — Forward, Down, Forward, Back, Triangle when touching the opponent
Nothing But Net — Back, Down, Back, Forward, Square in jumping distance
Babality — Down, Forward, Back, Triangle in jumping distance
Stage Fatality — Down, Up, R2 at close range
