Trowbridge jumped in 1992 to Universal Parks & Resorts' R&D division. There he helped develop the Amazing Adventures of Spider-Man, the first ride to combine moving vehicles with synchronized film projectors and 3-D technology. That ride won a Golden Ticket award for 12 consecutive years from Amusement Today magazine. He also oversaw early development of the Wizarding World of Harry Potter, which opened at Universal Orlando's Islands of Adventure in 2010.