once u leave the city in netherrealm turn left and follow to the end u will see nightwolf and u must do his mission then u can fight him and your reward is his costume i think

okay thanks

shit I still can't find it

just as u leave the city walls turn left like the guy above me said. talk to Nightwolf. he will give u quest to do. just go hiting demons till u find what u need to get back for Nightwolf. go back and talk to him and give it to him. LEAVE to the Nexus and then go back to the Netherrealm. have to do that so that Nightwolf will change locations and then u can fight him to get his alt. where he is now located is A-# i cant remember what number it was. but its outside the city walls. just as u leave the city walls go across the brige, then to the left across another bridge i beileve. then up close to the city wall on the outside. he will be standing there outside the city wall all the way to the left. fight him and beat him (hes easy) and u will unlock his alt.