Top Thrill Dragster the world overtaking both world records from Steel Dragon 2000 at Nagashima Spa Land that was just built three years earlier. It lost the title of being the world's tallest and fastest roller coaster when Kingda Ka at Six Flags Great Adventure opened in May 2005. Intamin designed both Kingda Ka and Top Thrill Dragster, and the two share a similar design and layout that differs primarily by the theme and the additional hill featured on Kingda Ka. The ride had constant downtime in its first couple seasons. Several problems such as the ride's hydraulic system and launch cable caused
Kingda Ka side, where they can choose to sit in the front or rear of the train. During recent seasons it has become common that only one train bay (the forward one on the side opposite of the parking lot) be used for the loading, unloading, and dispatching of trains and that the other train or trains in operation on any given day wait either in the station behind a loading/unloading train or outside of the station on the brakes that follow the second hill. Two operators load, check and dispatch each train; another launches the trains. Kingda Ka's music is by