From C64CG website, "Using a joystick in port 2, guide your zorb down the hill and avoid those trees, rocks,and branches. As time passes by, the hills eventually get steeper & steeper.

Play the role of a fan of Jackass, who wants to try something extreme, as he has no good life. He wants to achieve a goal which was to try something he probably do once in a lifetime. So he decides to try zorbing on the Malvern hills. So, strap yourself into an inflatable sphere, and get ready to roll down the hill and get ready to throw up."