To play the UNO Attack Card Game, first, set up the card shooter by inserting the cards into it. Then, deal the cards to 2 - 10 players aged 7 and older. The aim is to get rid of all the cards in your hand. When you draw an Attack! command card, push the shooter. You might get lucky and nothing happens, but if not, a stream of cards will shoot out and you have to add them to your hand. When you're left with one card, don't forget to shout 'UNO!' As for storage, you can keep the cards in the shooter for easy portability. When it comes to maintenance, keep the shooter clean and dry. Avoid dropping or hitting it hard. If it makes any strange noises or stops working properly, check the batteries and make sure they're installed correctly.