Use and improve your memory with a game of concentration – caveman style. In each level, try to find matching cards that are carved onto stone tablets. Start by flipping over any two cards. If they match, they are cleared from the screen and the caveman cheers you on. If they don't match, they'll get flipped back over, but try to remember what they are. Keep flipping cards and trying to find matches. Each time you make a match, you win ten points, but sets of cards that don't match will lose you a point. See if you can clear all the cards from the screen before time runs out.