smack it card game for kids arizona gameco get ready for a fun and exciting new twist on the classic card games slap jack and war. smack it! card game for kids is fast-paced, rowdy fun! players quickly flip their cards into a central pile and battle for the pile during challenge rounds. but stay sharp, you never know when a smack it! card will appear sending players scrambling for a win. smack it! is easy to learn, fun to play, and sure to be a hit with the whole family. play time: 7 to 14 mins. ages: 6 to 12 years (but adults can have fun playing with the kids too!) players: smack it! is a two to seven player game. contents: 57 custom game cards and rules.