Walibi is a Belgian theme park located close to Brussels. The amusement park offers over 40 attractions, street animations, and aquatic park. For the purpose of this project, we teamed up with C-NUI, digital communication, and DOOH specialists, to bring unique mobile quiz experience for queueing park visitors. The interactive quiz is enabling customers a line jump option. While standing in the lines and waiting for their turn on rides, visitors - using their smartphones - compete against each other in the queue line and get a chance to win a quick access to the ride.