I don't remember why I originally bothered to read this manual 25 years ago, but I ended up reading it to enjoy the jokes and humorous writing it contained.
I had to check and yes it is indeed a British game. The humor was a dead giveaway. In fact, this game was DMA Design aka Rockstar North, of Lemmings and Shadow of the Beast fame.
I actually miss this. I know there are still out there games with silly concepts, but think about this: unicycles racing against each other and that's about it. lol
Didn't it have a big blank page at the end that wasn't entirely blank? Pretty sure it has a joke (probably funnier to my adolescent mind than it is now) but I'm not entirely sure.