This is a cards game, only with nice kitties on them. THe goal is to watch the card on the lower side and find one that follows it or goes before. If you don't see any, ask for another card.
Spend a nice time playing solitaire. You have to click two identical cards, that will be the base of the game, to get rid of them. You can see the cards that are turned to get new ones till you're done with all of them. Use your mouse.