Guess who’s UNO’s new friend? Its DOS from Mattel! One is going to be outnumbered by two and matching the number is everything. Just like UNO the DOS card game involves a frantic run to be the first and you become the champion by getting rid of your cards. The players of the game have two discard piles each. Players can put both the cards down when they have two cards that sums up to the corresponding number to the card from the center pile. When your play leads you to have two cards in hand, don’t forget to yell DOS! Whoever makes it 200 points first is the winner.