Get ready for a memory and teamwork challenge that will test your limits (and your patience!) in Biss 20. The premise is simple: count from 1 to 20 in order, with each player saying one number at a time. Sounds easy, right? Well, that's where Fritz, the most treacherous bat in the game world, enters the scene. As soon as you think you've got the hang of it, he pops up with a crazy new rule to add to the confusion. And the worst part is, these rules pile up! You need to remember not only the number you're supposed to say, but also all the rules Fritz has invented so far. It's a game that grows in difficulty with each round, turning a basic task into a true mental workout. Perfect for livening up any gathering, Biss 20 is the kind of game that elicits genuine laughter (and maybe some sighs of frustration) as everyone tries to coordinate the count and the rules. With each number spoken, the tension rises: will you remember the 'skip one' rule or the one that says to say the number backward? With a cooperative dynamic, everyone wins or loses together, making the experience even more fun. It's a test of collective memory where communication (and luck!) are essential to reach the number 20 without stumbling over Fritz's rules. Ideal for those who enjoy quick games with a touch of humor and a growing challenge that surprises with every play.