This is my idea for what the last secret should be, I know it isn't but it would still be cool. Unlock all the koffins in the krypt, beat all the mission's in Konquest. Beat the game with every character in all difficulty level's (without losing a round) performing a fatality each fight (except for Moloch of course). Winning each test your might/sight. Performing each listed combo and special move with all characters. Getting a curtain amount of flawless vistory's with each character.

After you beat the last boss on the last diffuculty level after all of these challenges are completed one of the mummified soldier's jumps down from the top of the screen and say's something along the lines of you are now worthy and you fight him, only he has all of lui kang's moves perform's ever move/combo with dead accuracy (unlike my grammar), and move's twice as fast as all characters. If you defeat him you unlock him. Either that or have it be Noob Saibot.

So what do you all think, good idea or bad idea. Like I said, I know someone has had to already of tried this so I know it isn't the last secret nor am I saying that there is even a last secret but if there were it should have been unlocked like this.