Ghostlight today announced the availability of Mary King's Riding School for the Nintendo DS, a virtual horse riding game. With personal tuition from five time gold medal winner, Mary King, players can learn to care for, train and compete with their horse. Taking part in international events across the globe, riders will need to master the three major equestrian disciplines; dressage, cross-country and show jumping. In related news, Ghostlight announced that Mary King won the bronze medal at the Beijing Olympics.