Zorb is the New-Zealand-based company that invented that huge inflatable ball that humans can run around inside of. At their Rotorua facility, thrill-seekers climb inside a Zorb globe filled with water and roll down a zig-zagging hillside course.
Action filmmaker Devin Graham, a/k/a Devinsupertramp, talked the Zorb folks into letting him shoot people trying—and failing—to outrun the globe on this course. The effect is like a cross between the Running of the Bulls in Pamplona and the Indiana Jones boulder scene, if Indy was clumsy:
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While the ball looks nice and cushy, the ground is not. Folks got banged up for sure, as you can see in the behind-the-scenes vid: