Silly, speedy recognition and slams.
Everyone starts with one card and then grabs others (one at a time) as fast as they can. Each card must match either the border pattern or letter of the one before. Each card is a point. If you make a mistake you score 0!
At any time, you can stop playing and shout 'Grabbell!'
The last person to stop playing gets as many bonus points as there are cards remaining on the table. Everyone else gets 10 bonus points.
Cards are passed left, to be checked and counted.
A winner is declared and you'll probably want to play again!
This is one of many games playable with the Wibbell++ deck.