The Incredible Hulk Coaster at Universal's Islands of Adventure is rated as one of the most intense and "nerve-rattling" roller coasters in Orlando, scoring a 9 out of 10 on most thrill scales. Its "scare factor" begins with a unique Gamma Force Launch, which propels you from 0 to 40 mph upward through a tunnel in just two seconds, followed by a sudden plunge 150 feet toward the water. The ride features seven inversions, including a zero-gravity roll and a "cobra roll" over the lagoon, with top speeds reaching 67 mph. For riders who dislike heights or high G-forces, the sheer speed and constant "upside-down" movements can be overwhelming. However, the 2016 refurbishment added on-board audio and a much smoother track, which helps reduce the "head-banging" sensation common in older coasters. If you are comfortable with high-speed launches and don't mind spending most of your 2-minute ride upside down, it is an exhilarating must-do; but for casual riders, the relentless intensity makes it "too scary to take back-to-back trips."