Jung von Matt Neckar and Nike Running, along with Stuttgart/GER, created a live chase with an online component. "Catch the Flash" asked Viennese residents to participate in a chase through dark alleys of Vienna. Participants had to chase 50 real runners wearing reflective Nike jackets. The runners were equipped with a GPS app so the chasers could track them online while trying to find them. The aim was to catch the runners using a camera flash which made the jackets shine to reveal the number printed on the back.