Basically, this is all the mortal kombats before it without the story lines. They have every single character. Noob Saibot is definately my favorite. You can also choose all the bosses from the beginning of the game. You can choose MK1 Kano and Raiden, or MK2 Kung Lao or Jax. This game is pretty tough. Especially when you fight Shao Kahn. But, he can be defeated. I have only beat him a couple of times. Just the amount of content in the game is amazing. The graphics are superb. There is some slowdown, but mainly at the end of an 8 player tournament or when Shang Stung transforms. Overall one of my favorite games.