UNO Show 'em No Mercy game adds 56 more cards, special rules and super-tough action cards for the most brutal edition of UNO ever Tougher action cards, such as Skip Everyone, Wild Draw 6 and even Wild Draw 10 make game play merciless The Stacking Rule lets players pass the penalty (Draw +2, +4, +6, +10) to the next player until whoever can't play has to take all the cards combined Whenever a '7' or a '0' card is played, players must swap hands with another player The Mercy Rule means that if any player gets 25+ cards in their hand, they are out of the game More cards mean more chances to show opponents absolutely no mercy Makes a great gift to amp up the action on friends and family game nights, travels and parties