Roar is the name of a wooden roller coaster at Six Flags America located near Upper Marlboro, Maryland. There were originally two roller coasters, with the first one built in 1998 at Six Flags America followed by the second one which was built in 1999 at Six Flags Discovery Kingdom. Both rides were designed and built by Great Coasters International . In 2015, Discovery Kingdom announced the retirement of Roar at its theme park, but the park later revealed that it was being renovated and transformed into The Joker with I-Box track technology from Rocky Mountain Construction.Design and operationThe ride is a wooden roller coaster with a chain lift hill system. It features a unique "Speed Shed" element over a large section of track, designed to enhance the sense of speed without the visual sensory loss of a traditional tunnel. Of the two trains used on the ride, each one seats a capacity of 24 people in six cars and utilize both seat belts and lap bars. The height of the roller coaster is, and its drop is ; the maximum speed reached is. Unlike classic out and back rides, Roar is a twister design.Six Flags AmericaSix Flags America's Roar, called Roar by GCI, was built in 1998. Unlike its sibling in the west, this ride is longer at and has a slightly longer ride time. The longer track length is due to the ride's location on a slanting hillside, and longer drops on the station side and lift hill. Its trains, designed and maintained by Philadelphia Toboggan Coasters, are also different. Roar is one of the three rides at Six Flags America that feature an on-ride camera . The ride is situated in the park's Skull Island themed section of a pirate island.