Buy tickets through the app, it's easy to get a QR code right away... Just scan it at the entrance... It's best to buy a 2-day pass, especially during the holiday season in Japan... When I visited (the second week of September 2025), there were no timed entry tickets for SNW. Be prepared to queue for long queues for each ride (at least 60 minutes), especially for favorite rides. It's recommended to study the map carefully and choose your rides before coming to USJ.