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The Joker, Hybrid roller coaster in Vallejo, California, USA

The Joker is a hybrid roller coaster at Six Flags Discovery Kingdom in California that stretches 3,200 feet and sends riders through three inversions at speeds of 53 miles per hour. The ride uses steel track on a wooden support structure and carries 24 riders per train in six cars with two rows of two seats each.

Rocky Mountain Construction transformed the former Roar roller coaster into The Joker in 2016 by placing steel track onto the existing wooden support structure. This conversion reused the foundation while creating a completely new riding experience with different elements and characteristics.

The ride is themed to the Joker, the DC Comics villain, and the front car of each train carries a painted clown face. White lettering on the purple side of the track reads "THE JOKER", while the rails are purple with teal-green sides. The trains seat 24 riders in six cars, four per car.

Access to this roller coaster is through the main park grounds, and visitors should expect longer waits during peak hours. It helps to visit early in the morning or during quieter times of day to avoid waiting in long lines.

The Joker's first drop is re-profiled to 78 degrees, steeper than the original Roar, and the track reaches 53 mph before the step-up under-flip inverted roll. The front car of each train carries a painted clown face, and the purple track side reads "THE JOKER" in white lettering.

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Official opening
May 29, 2016
GPS coordinates
38.13806,-122.23278
Latest update
October 24, 2026 11:30
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« The Joker - Hybrid roller coaster in Vallejo, California, USA » is provided by Around Us (aroundus.com). Images and texts are derived from Wikimedia project under a Creative Commons license. You are allowed to copy, distribute, and modify copies of this page, under the conditions set by the license, as long as this note is clearly visible.

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