SooperDooperLooper (stylized as sooperdooperLooper) is a steel roller coaster at Hersheypark in Hershey, Pennsylvania, United States. Designed and manufactured by Anton Schwarzkopf, the roller coaster opened to the public on May 8, 1977. SooperDooperLooper is located in The Hollow section of the park and cost more than $3 million to construct and build. The roller coaster reaches a maximum height of 70 feet (21 meters), with a maximum speed of 45 miles per hour (72 km/h), and a total track length of 2,614 feet (797 meters). The SooperDooperLooper is a Schwarzkopf Looper Racer model, similar to The New Revolution at Six Flags Magic Mountain in Valencia, California. The roller coaster features a 57-foot (17-meter) vertical loop as its signature element. A 150-foot (46-meter) tunnel was added after two seasons of operation. The SooperDooperLooper has seen several variations in color schemes and trains. When the roller coaster opened it received generally positive reviews from critics and guests.