A virtual reality roller coaster is a roller coaster that utilises some form of virtual reality to provide an alternate experience for riders.
Operation
Riders are provided with virtual reality headsets to wear whilst on the ride. These headsets may be portable, or permanently attached to the ride itself and will display a synchronised video to the riders who experience the motions of the ride combined with the alternate reality provided through the headsets. After the ride, headsets are sanitised and (where applicable) recharged for future use.
In most cases, the virtual reality aspect of the ride is optional, and in some cases a supplement may be required for use.
References
Virtual reality roller coaster Wikipedia(Text) CC BY-SA