after you beat konquest and go back in go to the netherealm and go to where the guard wouldn't let you get through, he is gone and in there you can learn how to fight with Kabals moves but if you keep going you have to fight Kobra, Kira, and Kabal, when you fight them it says beat so and so to release Koceal or someone i don't know if i spelled it right but, when you beat all three it gives you a new portal back to the start and a chest with 1000 onxy coins but how do you get the secret character.