In Mortal Kombat 9 (2011 version) for the PS3 and Xbox 360, each character has multiple fatalities that they can perform at the end of the match.
This is the list of fatalities, and the babality and stage fatality for Scorpion.
All of these moves can be unlocked and added to your moves list by performing them in either Arcade Mode or Versus Mode.
Looking for more finishing moves? Check out my complete fatality guides:
Fatalities and babalities for Mortal Kombat on Xbox 360
Fatalities and babalities for Mortal Kombat on PS3
Scorpion’s Fatalities & Finishing Moves
Xbox 360
Nether Gates — Back, Forward, Back, A when touching your opponent
Split Descision — Forward, Down, Forward, Y when touching your opponent
Toasty! — Down, Up, Up, Y in jumping distance (requires Scorpion’s Classic costume from DLC to have access to this move)
Babality — Down, Back, Forward, Down, Y in jumping distance
Stage Fatality — Forward, Up, Up, X at close range
PS3
Nether Gates — Back, Forward, Back, X when touching your opponent
Split Descision — Forward, Down, Forward, Triangle when touching your opponent
Toasty! — Down, Up, Up, Triangle in jumping distance (requires Scorpion’s Classic costume from DLC to have access to this move)
Babality — Down, Back, Forward, Down, Triangle in jumping distance
Stage Fatality — Forward, Up, Up, Square at close range