Abstract: The present invention is an improved apparatus for wheeled vehicles. The use of spherical wheels allows the vehicle to be operated on slides that have steep elevation changes and quick turns and curves. Each spherical wheel is attached to the vehicle at a predetermined angle so that the longitudinal axis of the spherical wheel is perpendicular to where the spherical wheel contacts the surface. For a curved slide, the longitudinal axis of the spherical wheel is perpendicular to the tangent line. The spherical wheel vehicle allows amusement park operators to have a dual use slide, allowing it to be a water slide in the summer months and be a dry slide through use of the spherical wheel vehicle in colder months.