UNO Show 'em No Mercy is our most brutal UNO game yet. It has a ton more cards with WAY tougher penalties (draw 10 cards anyone.) and new rules that will have players stacking, swapping and drawing more cards than ever before. And there's even a Mercy Rule (yes, we get the irony) if things get too rough. There are two ways to win in this merciless version of the classic game - get rid of all cards OR knock all other players out of the game. Oh - and if you manage to get down to one card, don't forget to yell "UNO".