Roar (roller coaster)

Roar (trademarked as ROAR) is the name of two wooden roller coasters operated by Six Flags. The original coaster was built in 1998 at Six Flags America in Mitchellville, Maryland, while the other was built in 1999 at Six Flags Discovery Kingdom in Vallejo, California. Both rides were designed and built by Great Coasters International (GCI). Discovery Kingdom's Roar closed on August 16, 2015. On September 3, 2015, Six Flags announced that the Roar at Six Flags Discovery Kingdom would become a steel hybrid coaster named The Joker.