The Chameleon deck consists of 108 cards, broken down into a color deck (8 each of red, blue, green and yellow) and the play deck. The play deck counts four 10s and 20s, two 50s and 70s and one 100 in each color, plus two Skip and two Reverse cards (again in each color), four Wild cards and four Color Change cards. Initial deal is seven cards in hand plus a displayed Color card. On your turn, you draw from either deck or from the Play discard. Unless drawing a Color card, you then discard a Play card. If you manage to get all of your hand to match the Color card, you Go Out instead of drawing (you get a 100 point bonus for this). Each player then adds the color-matching cards to his score and subtracts the non-matching ones. The Skip, Reverse (ignored when playing with just two) and Wild cards are pretty obvious. The Color Change card is used to force another player to do so (play then continues with the player after the victim).