Classic sub-zero in umk and Mkt was just an extra charcter for fun but it could also be the original since he died by the hand of scorpian in the first tournament and that the sub-zero in mk2 is actully his brother this would explain his ending because the warriors havent seen his face because he died in the first tournament hope that helps

I thought Liu Kang and Kung Lao killed Kintaro in MK:SM?.........

MKSM isn't canon.