i just bought it 2 days ago, then i played using liu kang, liu kang is weaker than kung lao, i think, coz i can defeat my enemies easily by using kung lao ^^ kung lao is my favorite
btw, the secret is if we wanna use subzero, we have to beat the game by using kung lao, and if we wanna use scorpion we have to beat the game by using liu kang ^^