Went to an Octoberfest way back in the 90s; they had all kinds of dangerous looking rides with everybody drunk. The highlight was gas-powered bumper cars on a track and there were guys going the opposite direction.
I don’t think they understand the concept of liability in Germany.
Participate at your own risk.
A friend who attended Octoberfest said there must be no liability requirement in Germany after she and her 13 year old daughter waded, and sometimes slid, through streets covered in layers of broken glass.
When I lived in Berlin there was a carnival run by gypsies.... there were a few rides I wanted to go on. One was some king of slingshot ping pong ball that shop,you way up. I saw the drunken gypsy and said, “nah.” Within a few more launches one of the bungee cords snapped sending the “customers” slamming in to the poles. No thanks. I said to my Polish girlfriend, “if you can’t trust drunken unknown gypsies at a carnival who,can you trust?” She just laughed
Comments at the video say that German liability law says the carnival is not liable if someone is hurt through their own actions. I'd say they understand liability very well. Play stupid games....