Designer: Marvin Glass, Harvey "Hank" Kramer
Publisher: Arxon, Hasbro, Ideal, MB Giochi, MB Jeux, MB spel
Object: "Play the most card pairs by slapping your Slam-O-Matic hand."
The object of the game is to make the most pairs. If you are the last person to "slap-in" after as a pair is played ("Hands Down") then you lose a card from your hand.