From the designers homepage:

Strategic and entertaning cardgame for both adults as well as the whole family. BONUS is easy and fast to learn, but very hard to master! Can be played from the age of 7.

The players must play their cards to the canter of the table - and this way score the fewest possible cardpoints when the game ends. Strategy, tactics and vigilance is a necessity.

BONUS is played by 2, 3 or 4 players! With 2 BONUS games up to 8 players are supported. At 4, 6 or 8 players BONUS can be played as a partnergame!

BONUS is a true international game! 11 different languages are included in the gamerules inside the BONUS box!