You can get rid of a card by hitting the button labeled "Click Here To Discard" but you will lose time if you discard. Every time you score 21 you will get 10 points time the 1x, 2x, 3x, or 4x indicator. For example, if you get 21 when the 3x indicator is lit up, you will get 10 x 3 points for 30 points. If you get 21 when a column is lit up (light blue) you will go to the bonus pinball game to earn bonus points. You will also get bonus points when you make it through a full deck of cards. Each level is over when you get through all 52 cards (a full deck of cards). Have fun!