Hal Jordan, Sinestro, Abin Sur and other characters in the the Green Lantern world are hiding. On your turn, pick any two cards. If they match, you get to keep them. Find a pair of the special Green Lantern ring cards and you get to take the ring. There are several of those in the game, so it moves from player to player. Be the one who has it at the end of the game and you'll get bonus points. The player with the most points at the end of the game wins.