Play as Human Smoke - Player One-At the Select you fighter screen, pick Smoke and press High Punch, High Kick, Block, Run, and hold away (left) with the joystick simultaneously until the match begins. Smoke will explode into the Human Smoke.

Player Two-Do the exact same thing as Player One, except press Toward (right) with the joystick.

Code Effect

High Punch, High Kick, Block, Run, and hold away (left) Player One, play as Human Smoke.
High Punch, High Kick, Block, Run, and hold away (right) Player Two, play as Human Smoke.

Unlocking Hidden Characters and Saving them - Choose arcade mode, lose a match. Then let the timer run out. You'll have 10 seconds to enter the ultimate kombat code for the character. Only 1 at a time.

Saving - After unlocking them in arcade mode, get to the character select screen. Pause, then exit the game. you'll have them for the rest of the time your playing that time.

NOW, very important, when you start the game up the next time around, you need to FIRST go to the arcade mode. This will load the characters you unlocked. Just wait and get to the character select screen, then exit. Now you can play with the characters online.

IMPORTANT- If you do not go to the arcade mode first, you will erase the characters. Just load and exit, then play online.

Code Effect

Player 1: HP-5, LP-1, BL-8, LK-3, HK-8 Player 2: same buttons Unlock Classic Sub-zero
Player 1: HP-4, LP-2, BL-3, LK-4, HK-1 Player 2: HP-1, LP-4, BL-3, LK-2, HK-4 Unlock Ermac
Player 1: HP-4, LP-2, BL-2, LK-6, HK-2 Player 2: same buttons. Unlock Mileena

Secret Gamer Pic - Win 10 Xbox Live Ranked matches to unlock a secret gamer pic which contains the number 3 with the Mortal Kombat emblem in the middle.

Complete each of the following achievements below to get the allotted gamerscore. There are 12 achievements worth a total of 200 points.

Beat the Noob! (25) Beat the hidden character, Noob Saibot while playing the CPU.
Century (30) Win a total of 100 Xbox Live Ranked Versus matches
Combo Number 5 (15) Complete a 5 hit combo against the CPU.
Competitor (12) Win a total of 10 Xbox Live Ranked Versus matches.
Double Time (8) Complete a 2 hit combo against the CPU.
Fatality (15) Complete a Fatality during an Xbox Live Versus game.
Flawless (11) Complete a Flawless victory against the CPU (1 round).
Match Five (12) Reach the fifth MATCH in any single player tournament.
Match Three (10) Reach the third MATCH in any single player tournament.
My Friend (20) Complete a Friendship during an Xbox Live Versus game.
Soother (20) Complete a Babality against the CPU.
Ultimate (22) Become the champion in any single player tournament.

Enter the following codes at the VS Screen.

Code Effect

Player 1: LPx9, BLx8, LKx7 - Player 2: LPx6, BLx6, LKx6 "Hold Flippers During Casino Run" message appears
Player 1: LPx7, BLx1, LKx1 - Player 2: LPx3, BLx1, LKx3 "Rain Can Be Found in the Graveyard" Message
Player 1: LPx1, BLx2, LKx3 - Player 2: LPx9, BLx2, LKx6 "There Is No Knowledge That Is Not Power" Message
Player 1: LKx4 - Player 2: LPx4 "Whatcha Gun Do?" Message
Player 1: BLx2 - Player 2: BLx2 Blocking Disabled
Player 1: LPx6, BLx8, LKx8 - Player 2: LPx6, BLx8, LKx8 Dark Kombat
Player 1: LPx1, BLx2, LKx2 - Player 2: LPx2, BLx2, LKx1 Display "Skunky !!" Message
Player 1: LPx4, BLx4, LKx8 - Player 2: LPx8, BLx4, LKx4 Don't Jump at Me
Player 1: LPx2, BLx2, LKx7 - Player 2: LPx2, BLx2, LKx7 Explosive Combat (2 on 2 only)
Player 1: LPx6, BLx8, LKx8 - Player 2: LPx4, BLx2, LKx2 Fast Uppercut Recovery Enabled
Player 1: BLx9, BLx1 - Player 2: LPx1, BLx9 Kombat Zone: Bell Tower
Player 1: LPx3, BLx3 - Player 2: BLx3, LKx3 Kombat Zone: Jade's Desert
Player 1: LKx4 - Player 2: BLx7 Kombat Zone: Kahn's Kave
Player 1: LPx8, BLx8 - Player 2: LPx2, BLx2 Kombat Zone: Kahn's Tower
Player 1: LPx6, Player 2: BLx4 Kombat Zone: Kombat Temple
Player 1: BLx5 - Player 2: BLx5 Kombat Zone: Noob Saibot Dorfen
Player 1: LKx2 - Player 2: LKx3 Kombat Zone: River Kombat
Player 1: LPx3, BLx4, LKx3 - Player 2: LPx3, BLx4, LKx3 Kombat Zone: Rooftop
Player 1: LPx9, BLx3, LKx3 Kombat Zone: Scislac Busorez
Player 1: LPx6, BLx6, LKx6 - Player 2: LPx4, BLx4, LKx4 Kombat Zone: Scorpion's Lair
Player 1: LPx1, BLx2, LKx3 - Player 2: LPx9, LKx1 Kombat Zone: Soul Chamber
Player 1: BLx7, LKx9 - Player 2: BLx3, LKx5 Kombat Zone: Street
Player 1: LPx8, BLx8 - Player 2: BLx8, LKx8 Kombat Zone: Subway
Player 1: BLx7, LKx7 - Player 2: BLx2, LKx2 Kombat Zone: The Bridge
Player 1: LPx6, BLx6, LKx6 - Player 2: LPx3, BLx3, LKx3 Kombat Zone: The Graveyard
Player 1: LPx8, BLx2 - Player 2: BLx2, LKx8 Kombat Zone: The Pit 3
Player 1: LPx2, BLx8, LKx2 - Player 2: LPx2, BLx8, LKx2 No Fear = EB Button, Skydive, Max Countdown
Player 1: LPx9, BLx8, LKx7 - Player 2: LPx1, BLx2, LKx3 No Powerbars
Player 1: BLx3, LKx3 Player 1 Half Power
Player 1: LPx7, LKx7 Player 1 Quarter Power
Player 2: BLx3, LKx3 Player 2 Half Power
Player 2: LPx7, LKx7 Player 2 Quarter Power
Player 1: LPx4, BLx4, LKx4 - Player 2: LPx4, BLx4, LKx4 RandPer Kombat (Method 1)
Player 1: LPx4, BLx6 - Player 2: LPx4, BLx6 RandPer Kombat (Method 2)
Player 1: LPx9, BLx9, LKx9 - Player 2: LPx9, BLx9, LKx9 Revision
Player 1: LPx5, BLx5 - Player 2: LPx5, BLx5 See the Mortal Kombat Live Tour !!
Player 1: LPx3 - Player 2: LPx3 Silent Kombat
Player 1: LPx1 - Player 2: LPx1 Throwing Disabled
Player 1: LPx6, BLx4, LKx2 - Player 2: LPx4, BLx6, LKx8 Two-Player Mini-Game of Galaga
Player 1: BLx4, LKx4 - Player 2: LPx4, BLx4 Unikoriv Referri: Sans Power
Player 1: LPx4, BLx6, LKx6 - Player 2: LPx4, BLx6, LKx6 Unlimited Run
Player 1: LPx9, BLx6, LKx9 - Player 2: LPx1, BLx4, LKx1 Winner of This Round Battles Motaro
Player 1: BLx3, LKx3 - Player 2: LPx5, BLx6, LKx4 Winner of This Round Battles Shao Kahn
Player 1: LPx2, LKx5 - Player 2: LPx2, LKx5 Winner of this Round Battles Smoke
Player 1: LPx7, BLx6, LKx9 - Player 2: LPx3, BLx4, LKx2 Winnoer of This Round Battles Noob Saibot