Parallel Dance is a social game on campus public screens based on motion capture, which provides a platform for students to find new friends. We propose a multiplayer game model, in which players participate in the same game cross space and time. We focus on helping students overcome social shame, lack of self-confidence, and language barriers in this social game. We designed and implemented Parallel Dance, and deployed the game on campus public screens which are networked by cloud server. Participants can gain not only fun in the game, but also friendship.