Mattel Games UNO Show ?em No Mercy Card Game for Kids, Adults & Family Parties and Travel With Extra Cards, Special Rules and Tougher Penalties., HWV18UNO 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