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 Jade.
These 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
Xbox 360
Half Mast – Back, Down, Back, Down, B within sweeping distance
Head-A-Rang – Up, Up, Down, Forward, X when in max distance
Babality – Down, Down, Forward, Down, B in jumping distance
Stage Fatality – Back, Forward, Down, RT at close range
PS3
Half Mast – Back, Down, Back, Down, Circle within sweeping distance
Head-A-Rang – Up, Up, Down, Forward, Square when in max distance
Babality – Down, Down, Forward, Down, Circle in jumping distance
Stage Fatality – Back, Forward, Down, R2 at close range