Tic-Tac-Toe

In the midst of giving your naughty kitten a bath, you were inexplicably summoned to the ends of the Universe. There the gods have gathered to have you stand trial for the crimes of humanity. After much deliberation behind closed space, the judgement has been decided:

You are to play one game, to the death, of tic-tac-toe. Your opponent will be an Undead Rob Zombie. If you win, humanity will receive a second chance. If you lose, earth will be annihilated, starting with your cat.