Players need rafts to play U slide. Rafts carrying players slide from a 12 meters high platform, after the start the raft immediately  rush down along the almost vertical slope. The rafts arrive at the bottom at a very high rate, and then rush on the other slope crazily because of the huge inertia. Players experience overweight and weightlessness over and over under ups and downs, and have an unforgettable and thrilling trip. All the pressure and upsets go away, enjoy life’s happiness and feel of flying.