Enjoy 
Info from:  http://www.xbox360achievements.org/game/mortal-kombat/achievements/

 Cyber Challenger20  Complete 100 Online Matches 

   Wavenet...80  Win 100 total Online Matches 

   Humiliation10  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 10000 pints of blood 

   License to Kill20  Complete Fatality Traine 

   Ultimate Respect!20  Earn 2500 Respect Points via King of the Hill Matches 

   You Will Learn Respect!10  Earn 1000 Respect Points via King of the Hill Matches 

   Undertaker20  Unlock 50% of the Krypt

    The Krypt Keeper20  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 Grappler10  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 Effort10  Complete Tutorial Mode

   The Competitor30  Complete 200 Versus matches (online OR offline) 

   Ladder Master20  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 Champion40  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 Apprentice10  Complete 25 Tower missions 

    Tower Master20  Complete all Tower missions

   Dim Mak!20  Complete all Test Your Strike mini-game challenges

   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 Champs20  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 Strong20  Gain Mastery of 1 Fighter

   My Kung Fu Is Stronger60  Gain Mastery of All Fighters 

    I "Might" Be the Strongest20  Complete all Test Your Might mini-game challenges 

   Luck Be A Lady10  Get all MK Dragons in Test Your Luck

   You've Got Style!20  Unlock all Alternate Costumes   

 Secret Achievements
  Secret Achievement10  Continue playing to unlock this secret achievement 

 . Secret Achievement10  Continue playing to unlock this secret achievement 

 . Secret Achievement10  Continue playing to unlock this secret achievement 

 . Secret Achievement10  Continue playing to unlock this secret achievement 

 . Secret Achievement20  Continue playing to unlock this secret achievement. 

 Secret Achievement20  Continue playing to unlock this secret achievement 

 . Secret Achievement20  Continue playing to unlock this secret achievement 

 . Secret Achievement10  Continue playing to unlock this secret achievement 

 . Secret Achievement20  Continue playing to unlock this secret achievement 

 . Secret Achievement10  Continue playing to unlock this secret achievement.    

OH MAN THE KRYPT!! 
 
that was my favorite, i love all the art and everything that goes into these games

Looking over these achievements just solidifies how much I don't like Mortal Kombat. I gave in when MK Armageddon and DC was released... and was so disappointed by the shitty ass gameplay from both that I vowed never to touch a MK game again after DC.

" Looking over these achievements just solidifies how much I don't like Mortal Kombat. I gave in when MK Armageddon and DC was released... and was so disappointed by the shitty ass gameplay from both that I vowed never to touch a MK game again after DC. "

I just want the game, now! you can have the points, dont care.

Gonna be difficult to get a platinum lol

One of the secret achievements is supposedly called "Cold Fusion" and is for unlocking Cyber Sub Zero.  I REALLY hope that turns out to be fake. I love Sub-Zero, but we really don't need another ninja/cyborg. Other than that, the only achievement I really have any problem with is Turtle. Rewarding obnoxious behavior seems silly.

A thread was made all ready in the correct forums. 

There is already a thread on this here.