Kingda Ka is a hydraulically-launched steel roller coaster located at Six Flags Great Adventure in Jackson, New Jersey, United States. Manufactured by Intamin and designed by Werner Stengel, Kingda Ka opened as the tallest and fastest roller coaster in the world on May 21, 2005, surpassing Top Thrill Dragster.
Thunder Dolphin is a steel roller coaster at the Tokyo Dome City Attractions amusement park, which is part of Tokyo Dome City in Tokyo, Japan. The ride was designed and constructed by Intamin.