I can't imagine the spheres being "real", though, let alone rotating simply because of how scratched they would immediately get.
IF someone were to build a ride, it seems like the most logical way to do it would be to have an indoor dark ride where the ride vehicles have a hemispherical perspex dome that fits over the riders after load. At some point in the attraction, embedded screens or, more likely, a small onboard projector could make cracks appear in the plastic bubble, which could then be retracted, mid-ride in a brief period of darkness with accompanying "glass breaking" sounds. Same way Alien Encounter worked. I don't know how you get around the kayfabe reason the ride vehicle still moving, though- maybe show riders in the pre-show that it has auxiliary wheels? Have the frame be sliding down a muddy riverbed? If they wanted to be really fancy they could make it another robocoaster and have the ride vehicles be lifted up off the track in the "jaws" of something and slung around for a while.
Imagine it- a less screen-heavy version of Forbidden Journey set in a rainy, dark section of a dinosaur-filed jungle.
It would be like a supercharged version of Countdown to Extinction, since the threat to the riders would always be in front of them, instead of way off to the sides.