Mortal Kombat: Arcade Kollection Cheats

Play as Human Smoke
Pick Smoke and before the fight begins hold High Punch, High Kick, Block, Run, and hold left for player one or right for player two.

Player One as Human Smoke: Hold High Punch, High Kick, Block, Run, and hold left
Player Two as Human Smoke: Hold High Punch, High Kick, Block, Run, and hold right

Unlock Mileena, Ermac and Classic Sub-Zero
Lose and not kontinue on an arcade ladder to come to the screen where you can enter one of three Ultimate Kombat Kodes. The first five inputs are from controller 1, the second pair is controller 2. The buttons inputted are revealed as symbols on the screen and appear in this order when pressed: HP-LP-BLK-LK-HK (Controller 1) HP-LP-BLK-LK-HK (Controller 2) Holding up and pressing a button will scroll through the symbols 9,8,7 instead of 1,2,3 when you don't hold up. These DO save to your hard drive once unlocked and never need to be inputted again!

Classic Sub-Zero: 8-1-8-3-5 8-1-8-3-5
Ermac: 1-2-3-4-4 4-4-3-2-1
Mileena: 2-2-2-6-4 2-2-2-6-4