It was linked in some way with Telethon '88, which was some kind of national charity week. Fooltime, the circus school in Bristol, provided T-shirts to identify the teams. There were around a dozen teams if I remember rightly. I remember watching Pedro practicing afterwards, bowling an ultimate wheel along the ground, running after it, and mounting. I am currently collecting ideas for improvements of the rules.
Fair play is crucial for all players.
At the beginning and after each goal all players have to go to their own half. Then the game starts as soon as a player of the team in possession crosses the center line. A player may only take part in a game when riding the unicycle. After falling off he has to mount at the same spot. Until then he must not be an obstacle to other players.