Sub Zero Classic Fatality?

Wait, I've also purchased one in the krypt that was forward down forward Y. What's the third "???" fatality between that and the stage fatality?
 
Wait, I've also purchased one in the krypt that was forward down forward Y. What's the third "???" fatality between that and the stage fatality?

Sub Zero
Have An Ice Day - B, F, D, F, 4 (Sweep)
Spinal Smash - D, B, D, F, 2 (Sweep)
Spine Rip - F, D, F, 2 (Sweep) DLC
Stage Fatality - F, D, B, 2 (Varies)
Babality - D, B, D, 4 (Jump)

all in that same order
 
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