Kingda Ka is a steel roller coaster at Six Flags Great Adventure in Jackson, New Jersey, USA. It was built by Stakotra, a subcontractor to Intamin. Built in 2005 to be the worlds tallest and fastest roller coaster Kingda Ka is one of only two strata coasters in the world. Kingda Ka held the record for the worlds fastest roller coaster until the completion of Formula Rossa at Ferrari World in Abu Dhabi, United Arab Emirates. Kingda Ka goes up and can go . It first opened on May 21, 2005. To get up 456 feet, the train is launched by a machine to 128 miles per hour in 3 seconds. The train goes up the tower, and back down. At the bottom the train goes over a hill while it is slowing down. Soon it is going slow enough to be able to arrive safely back where it started. The ride lasts 28 seconds from the time it is launched.