Mortal Kombat 9 has four hidden fights which are also hidden trophy/achievements. These have to be done in ladder mode but you can use any fighter you want. Make sure you set the rounds to 2 and fight on beginner since some of them make you have flawless victories. The hidden fights are pretty fun and some of you may remember them from the older Mortal Kombats.
First hidden fight in Mortal Kombat 9 is getting to Shang Tsung in ladder mode without losing a round. That’s easy on beginner. Then you have to beat him with a flawless victory twice. Once you get to finish him use a fatality or else it won’t work. You will go to Goro’s lair and face off with Old school Jade. This will net you the hidden trophy/achievement you found me!
Second hidden fight in Mortal Kombat 9 is at the Forest level in ladder mode. Once in the stage watch the far right trees and you should see a certain ninja watching you fight. If you see him press select and down(ps3) or back and down (360). You will then instantly win and face off with old school Smoke and get the Hidden trophy/achievement Hide and Seek.
Third hidden fight in Mortal Kombat 9 is done at the Pit map in ladder mode. I was Scorpion I don’t know if you have to be him or not so be him to play it safe. This is the stage where there are two others fighting on a bridge in the back ground. You have to see either Santa Clause or a Witch fly by in the background to know you are doing it right. If you don’t then go back to the character select screen(Thanks Jono). Yet again you have to get two flawless victories in a row then do the STAGE fatality. After your knock your opponent off the bridge you will enter a new stage. You will be greeted by old school Reptile before he became a lizard. This will also net you the hidden trophy/achievement Pit Master.
The last hidden fight in Mortal Kombat 9 is done at the Temple in ladder mode. The temple level has the Alter in the middle as well as the Mortal Kombat window in the back ground. You have to win without blocking twice. You should see a ninja right next to the Alter. Right after you win Noob Saibot will appear and you will unlock the Hidden trophy/achievement Brotherhood of Shadow.
So there you go all the hidden fights in Mortal Kombat 9. Enjoy and happy hunting!