Players take turns matching a card in their hand with the current card shown on top of the deck either by color or number. Special action cards, like Skips, Reverses, Draw Twos, color-changing Wild and Draw Four Wild cards, deliver game-changing moments as they each perform a function to help you defeat your opponents. If you can't make a match, you must draw from the center pile. And when you're down to one card, don't forget to shout "UNO!" The first player to get rid of all the cards in their hand wins.