he should be rivaled with Rau from mark of kri
all 3rd party characters are paired with 1st party.
oh and his animality POLAR BEAR for LVL 2
Level 3 for any Mortal Kombat would likely be "FATALITY." Whichever of their fatalities is most known, or maybe it will switch between them each time randomly.
I personally believe Sub Zero isn't a good choice of representative, as he would be very similar to Cole - style with freezing.
It is okay to have several characters with guns and swords but not 2 with freeze powers? That's not a valid reason IMO.
Besides, Sub-Zero's ice clone is unique and opens up a new defensive element to the game, nobody has anything similar. In fact, Scorpion would be a boring choice because Nariko/Parappa/Kratos already have grab/grab-pull moves and would be no different to Scorpion's spear which is his only signature and useful move. If you even took a glance at the suggested movelist you will realize he plays nothing like Good Cole.
Anyone who's played MK with Sub-Zero can attest to the fact that Cole does not really give the feeling of playing as Sub_Zero.
Fatalities would be fine but not sure how it'd be done without blood (e..g pulling a spine out)