Dr. Diabolical's Cliffhanger is a steel roller coaster at Six Flags Fiesta Texas in San Antonio, Texas.[2] Located in the Crackaxle Canyon section, it was designed as a dive coaster model and was manufactured by Bolliger & Mabillard. It opened on July 30, 2022, replacing the Sundance Theatre.[3] From its opening in 2022 to 2025, it held the record for having the steepest drop on any Dive Coaster model, before it was surpassed by Wrath of Rakshasa.
History
On June 12, 2021, Six Flags Fiesta Texas held the "Roller Coaster Rodeo." At the event, the park started teasing their new attraction. Additionally, the park also confirmed the removal of the Sundance Theatre for the upcoming attraction on June 14, 2021.[4] The Sundance Theatre was an original theatre venue that opened with the park in 1992.[5]