You can absolutely enjoy Universal Studios Japan (USJ) in Osaka without knowing any Japanese. The park is a major international destination, and English signage is everywhere, from the entrance gates to the menus in themed restaurants. Most major attractions, including those in Super Nintendo World and The Wizarding World of Harry Potter, feature English subtitles or visual cues that make the storylines easy to follow. While the live shows and character greetings are primarily in Japanese, the physical comedy and high-tech effects translate globally. For 2026, it is highly recommended to download the official USJ app, which is available in English and allows you to track wait times and secure the mandatory "Timed Entry Tickets" for popular areas without needing to speak to a single staff member.