The Competition in Mortal Kombat II was a complete setup by Shao Kahn and Shang Tsung. When the Battle ended between Shao Kahn and Lui Kang, Kahn's great scheme was hatched. Shao Kahn's deceased wife was caused to be reborn of the human world by Shang Tsung 10 millenia ago so that Kahn would be allowed to claim the earth as his own. Shang Tsung has been granted more power from Kahn for hatching this conspiracy, yet Tsung remains instrumental. Stealing all human souls for himself, Kahn has found that the God Of Thunder, Raiden, cannot fight in the Earth realm as it has become a part of the Outworld itself. Kahn finds himself delighted. However, Raiden has been able to protect several souls from Kahn's clutches. Sonya and Jax have not only a common mission to destory Kahn's rule, but to detain their No. 1 criminal Kano, as he has beg Kahn to spare him in exchange for training the outworld warriors to use Earth Weapons. Kahn has placed a new Shokan dragon, Sheeva, as the bodyguard for Sindel. But Sheeva has discovered that Kahn has placed a race of Centaur warriors to exterminate the remaining humans. On The Outworld, The Centaurs are the natural enemy of the Shokan dragons and she questions Kahn's ambition. Lui Kang and Kung Lao have only a common goal to destroy Kahn Forever. And Sub-Zero II, has now been declared a marked man by his own clan as they have been changed to soulless cyborgs. Two of them, the loyal Cyrax and Sektor have been sent to kill Sub-Zero, who has shed his mask, believes his best friend is dead, and plans to soak up his anger for Kahn. Sub-Zero may soon learn he does have an ally he believes is dead. Any Guesses? There are other fighters whose lifestyles are ordinary, Like riot cop Stryker, and unknown, like Nightwolf and Kabal. They have no choice but to overthrow Kahn's rule. And others such as Johnny Cage have died in their fight. Kahn may be more then they can handle. Thats My Take On The Whole Thing. The victor was LIU KANG!

Liu Kang. That's why most of us are so freakin' tired of him being hero.

But I have a question: If the stories for each of the games take place the same year the game comes out, and if MK2 competion didn't cross over to the next year, but even if it did, why did it take Kahn 1 or 2 years after he got Sindel back to try to take over earth?

Either of them could have won, or neither did. It's been stated that MK2 was a diversion, or a false tournament, set up by Shao Kahn. Without Raiden or the heroes to protect Earth (Raiden was in Outworld in MK2), Kahn had Tsung send Sindel's soul to Earth during the time MK2 was taking place. When she was reborn on Earth, Kahn could easily invade. This could have happened during, or shortly after the MK2 tournament. If Kahn was defeated in the MK2 tournament, it could have been Kang since he's the MK champion, but anyone could have done it since it probably would not have affected Liu Kang still being the MK champion afterwards.