QR code implementation is still being finalized for certain LIVE machines, including The Simpsons, Ridge Racer, Marvel vs. Capcom, Teenage Mutant Ninja Turtles: Turtles in Time, X-Men vs. Streetfighter, Street Fighter II (Big Blue Chan Edition), Capcom Legacy (Shinku Hadoken Edition), Capcom Legacy (Yoga Flame Edition), Street Fighter II (Big Blue Edition), and Marvel vs. Capcom II. Contact customer support if you have issues connecting your LIVE machine to your app.