what are all the mortal kombat 9 unlockables?

Answer 1

Scorpion, Mileena, Reptile, Subzero, Kung Lao, Johnny cage, Night Wolf, Sector, Cyrax, Lui Kang, Sonya Blade, Baraka, Stryker, Jax, Shang Tsung, Ermac, Sindel, Noob Saibot, Jade, Kitana, Quin Chi, Kano, Human Cyrax (THE ONLY TWO SPOILERS, READ IF YOU CAN , DOES NOT INVOLVE STORY) Cyber Sub zero, Mileenas 3rd Alternative suit gets you an achievement!

Answer 2

here's a list of all the unlockable achievements if thats what you're looking for:

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

(contains character unlocks aswell since character unlocks are part of achievements)

Answer 3

There are the achievements.

http://www.xbox360achievements.org/print.php?gameID=951&type=list