The game's story sees Shang Tsung resurrect Queen Sindel in Earthrealm, allowing Kahn to reclaim her by invading Earth, which is a violation of Mortal Kombat tournament rules.
The game's story sees Shang Tsung resurrect Queen Sindel in Earthrealm, allowing Kahn to cross the dimensional borders to claim her. This ploy allows Outworld's to invade Earth, which is normally a violation of Mortal Kombat tournament rules.