Like any other game, in Mortal Kombat you can find some secrets and use some of the cheats. But have in mind that in this text you can find some spoilers for events that will happen in the Krypt, or puzzles that can be solved.

Firstly, we need to mention Frost. To unlock Frost, you will need to successfully complete Chapter 4. And if you want to get Fire God Liu Kang skin, you will need to finish all 30 stages of the Gauntlet. Shao Kahn announcer voice can be unlocked simply, only if you complete the Basic, Intermediate, and Expert tutorial.

To unlock the teamwork trophy, you will need to pick the Kenquer and then Towers Of Time. And in that part, you will need to compete with the four tutorial towers. On one of them, you will find the boss tower. Once you select the boss tower, you will be able to choose Group Battle and then you can select Search For Players or Invite Players. Once the match starts, you will unlock the trophy.

Did you know that you can be a Mercy finisher? This is a special move where you can revive opponents and give them a bit of health. But you can use this only in the last round. After you got the message to finish him you will need to press L2+down, L2+down, L2+down. In this case, you will get two hearts instead of one.

If you want to unlock all head pike chests, you will need to be in the Warrior Shrine and hold square and select the Krypt and then release square. Once you make your way to some of the pikes, you need to hold the square. Once you place the head you will unlock the Tsang Tsung's Throne Room.

Also, you can win secret skins and rewards. Once you summon Reptile, you can unlock secret skin and other rewards. If you want to summon him, you will need to use Skeleton Key. All in all, you can unlock many interesting things just if you follow some steps.