Enjoy
Was that not the challenge where you go against Sheeva as well if you didn't perform the fatality the first time? If so, then I did that earlier this evening. Done it first time mind, but you gotta like the ice, ice, baby, Sir Sub-Zero himself.
Enjoy
It's the other way around. Challenge #59 is performing a Fatality on Sheeva at the end of the round. If you fail the Fatality (I did the first time on accident) Sheeva regains her health and Goro jumps in as her partner. I guess you are then able to perform your Fatality on Goro if you finish Sheeva first.