Sub Zero or Kuai Liang is popular Mortal Kombat character. In Kombat Kids, he appears at first making snowman and Raiden is clapping at him happy.
When Sub Zero throws snow ball at Rain, Rain falls and gets his head hit by tree Rain survives however.
Later, Sub Zero is surprised to see his enemy Scorpion, so they start to fight. After Sub Zero throws Scorpion, Scorpion summons spear and takes him down so, they fight in lava but, at end they both get eaten.