Round Up is an amusement ride consisting of a circular horizontal platform with a vertical cage-like ウォール around the edge. The platform is attached to a motor on a hydraulic arm. The ride starts out によって spinning until the centrifugal force is enough to push riders against the wall. Then the arm raises the horizontal platform to a vertical position in which riders, instead of spinning horizontally, are now spinning almost vertically.

The ride spins for a predetermined cycle until an automatic timer releases the hydraulic fluid from the arm, causing the platform to return to its horizontal position....