I was playing my first fight in mk. after defeating my opponent. it said finished him... i didnt know what to do. (thinking of fatalities n how to do it) so i pressed something and start. then all of a suddent the opponent did a suicide fatality on himself.. i was like wtf. did i do that? so im guessing theres a hidden fatality where u can make the oppenent do a hiri kiri or whatever on himself after defeating him.