There's a lot of unexplained shit. Why does the Lin Kuei hate the Shirai Ryu so much? In the games, sub-zero kills hanzo as part of a job for Quan Chi. So what's the story here?
How the fuck is Sub-Zero 400 years old?
So Scorpion can just come back? Why did it take him over 400 years to get off his ass?
my take was Tsung was sending his men to kill the would be kombatants blood lines to weaken them when the challenge was initiated. his age i just kind of ignore. powerful magics. blah blah blah.