Mortal Kombat Cheats - Xbox 360

Cheat Mode
Before the match starts, at the versus screen, Player 1 enters the first 3 digits while Player 2 enters the last 3:

Armless Kombat - P1: 9-1-1, P2: 9-1-1
Blocking Disabled - P1: 0-2-0, P2: 0-2-0
Breakers Disabled - P1: 0-9-0, P2: 0-9-0
Dark Kombat - P1: 0-2-2, P2: 0-2-2
Double Dash - P1: 3-9-1, P2: 1-9-3
Dream Kombat - P1: 2-2-2, P2: 5-5-5
Enhance Moves Disabled - P1: 0-5-1, P2: 1-5-0
Explosive Kombat - P1: 2-2-7, P2: 2-2-7
Foreground Objects Disabled - P1: 0-0-1, P2: 0-0-1
Headless Kombat - P1: 8-0-8, P2: 8-0-8
Health Recovery - P1: 0-1-2, P2: 0-1-2
Hyper Fighting - P1: 0-9-1, P2: 0-9-1
Invisible Kombat - P1: 7-7-0, P2: 7-7-0
Jumping Disabled - P1: 8-3-1, P2: 8-3-1
Kombos Disabled - P1: 9-3-1, P2: 9-3-1
No Blood - P1: 9-0-0, P2: 9-0-0
Power Bars Disabled - P1: 4-0-4, P2: 4-0-4
Psycho Kombat - P1: 7-0-7, P2: 7-0-7
Quick Uppercut Recovery - P1: 3-0-3, P2: 3-0-3
Rainbow Kombat - P1: 2-3-4, P2: 2-3-4
Sans Power - P1: 0-4-4, P2: 4-4-0
Silent Kombat - P1: 3-0-0, P2: 3-0-0
Specials Disabled - P1: 7-3-1, P2: 7-3-1
Super Recovery - P1: 1-2-3, P2: 1-2-3
Throwing Disabled - P1: 1-0-0, P2: 1-0-0
Throwing Encouraged - P1: 0-1-0, P2: 0-1-0
Tournament Mode - P1: 1-1-1, P2: 1-1-1
Unlimited Super Meter - P1: 4-6-6, P2: 4-6-6
Vampire Kombat - P1: 4-2-4, P2: 4-2-4
X-Rays Disabled - P1: 2-4-2, P2: 2-4-2
Zombie Kombat - P1: 6-6-6, P2: 6-6-6

Achievements
Complete each achievement to get the allotted gamerscore:

Cyber Challenger (20) - Complete 100 Online Matches.
Wavenet... (80) - Win 100 total Online Matches.
Humiliation (10) - Get a Flawless Victory in an Online Match.
Tough Guy! (10) - Win an Online Match.
Robots Rule! (10) - Win Arcade Tag Ladder with robot Sektor and Cyrax.
Outstanding! (60) - Win 10 Ranked Online Matches in a row.
There Will Be Blood! (40) - Spill 10,000 pints of blood.
License to Kill (20) - Complete Fatality Trainer.
Ultimate Respect! (20) - Earn 2,500 Respect Points via King of the Hill Matches.
You Will Learn Respect! (10) - Earn 1,000 Respect Points via King of the Hill Matches.
The Competitor (30) - Complete 200 Versus matches (online OR offline).
Ladder Master (20) - Complete Arcade Ladder on max difficulty without using a continue.
Don't Jump! (10) - Win A Ranked Online Match without jumping.
Where's The Arcade? (10) - Complete Arcade Ladder with Any Fighter.
Arcade Champion (40) - Complete Arcade Ladder with All Fighters.
Finish What You Start! (60) - Perform a Fatality with all playable fighters.
Tag, You're It! (10) - Perform and land a Tag Combo.
These Aren't My Glasses! (20) - Complete all Test Your Sight mini-game challenges.
Tower Apprentice (10) - Complete 25 Tower missions.
Tower Master (20) - Complete all Tower missions.
Dim Mak! (20) - Complete all Test Your Strike mini-game challenges.
Undertaker (20) - Unlock 50% of the Krypt.
The Krypt Keeper (20) - Unlock 100% of the Krypt.
What Does This Button Do?? (10) - Complete Arcade Ladder without blocking (allowed to continue).
Fatality! (5) - Perform a Fatality!.
Block This! (10) - Perform a 10-hit combo with any fighter.
The Grappler (10) - Perform every fighter's forward and backwards throws.
Halfway There! (5) - Complete Story Mode 50%.
Back In Time... (20) - Complete Story Mode 100%.
A For Effort (10) - Complete Tutorial Mode.
I'm Not Dead Yet! (20) - Comeback with under 10% health in an Online Ranked Match.
e-X-cellent! (10) - Successfully land every playable fighter's X-Ray attack.
There Can Be Only One! (20) - Win 10 King of the Hill Matches in a row.
Throws Are For Champs (20) - Perform 8 throws in an Online Ranked Match.
Turtle! (20) - Win both rounds with timer running out in an Online Ranked Match.
My Kung Fu Is Strong (20) - Gain Mastery of 1 Fighter.
My Kung Fu Is Stronger (60) - Gain Mastery of All Fighters.
I "Might" Be the Strongest (20) - Complete all Test Your Might mini-game challenges.
Luck Be A Lady (10) - Get all MK Dragons in Test Your Luck.
You've Got Style! (20) - Unlock all Alternate Costumes.

Unlock Secret Battles (Arcade Mode)
Secret "Jade" Battle - Get a double flawless victory and perform a fatality on Shang Tsung when battling against him.
Secret "Noob Saibot" Battle - When you see Noob in "The Temple" stage's background win that battle without using the [RT] button.
Secret "Reptile" Battle - On "The Pit 2 (Night)" stage wait until a shadowy figure flies across the moon, then get a double flawless victory and perform a stage fatality.
Secret "Smoke" Battle - On "The Living Forest" stage wait until Smoke appears behind one of the trees. On that moment press [Down] + [Back] repeatedly.

Unlock Characters
Mileena Fleshpit - Complete the last level (Level 300) of the Challenge Tower.
Cyber Sub-Zero - Complete half of the chapters in Story Mode. From then on he will be selectable on the Character Selection screen.
Quan Chi - Complete all chapters in Story Mode. From then on he will be selectable on the Character Selection screen.