The players try to form a row of five cards which depict Bibi Blocksberg and her friend gradually appearing out of the clouds.
The active player places a card face-down on a small seesaw-catapult, then hits the other end. If the card lands on the table and is face-up, he/she can check if it fits into his/her row. If it doesn't fit, it is discarded. If it doesn't land face-up, the next player adds it to his/her own card when firing the catapult, so he/she has a chance of multiple cards landing face-up.
The first player to complete a row is the winner.

(User summary by HilkMAN)