Mr. Freeze: Reverse Blast is the signature launch coaster at Six Flags St. Louis in Eureka, Missouri — a Premier Rides LIM shuttle coaster that fires riders backwards from a dead stop to 70 mph in under four seconds. It’s been the park’s most talked-about ride since its 2012 reversal, and it remains one of only two Mr. Freeze installations in the world.
This guide covers everything people search for about the ride: exactly how fast and tall it is, the height requirement, where to find it in the park, what makes the St. Louis version different from its Texas twin, and what (if anything) changes for the ride as Six Flags St. Louis transitions to new ownership in 2026.
Quick Answer
Mr. Freeze: Reverse Blast is a Premier Rides LIM shuttle coaster at Six Flags St. Louis that launches riders backwards from 0 to 70 mph in 3.8 seconds, through a top hat inversion and up a 218-foot tower, before repeating the entire course forward. It’s located in the park’s DC Comics Plaza and requires riders to be at least 54 inches tall.
Where to Find Mr. Freeze: Reverse Blast in the Park
Mr. Freeze: Reverse Blast sits in Six Flags St. Louis’s DC Comics Plaza, the section of the park themed around Batman villains and DC characters. The queue is themed as ‘Snowy’s Ice Cream Factory,’ playing on the ride’s original Batman & Robin backstory — Mr. Freeze’s hideout disguised as an abandoned ice cream plant — before funneling riders to the launch platform.
Because it’s a shuttle coaster with only two trains running back-to-back, lines can move faster than the ride’s tall, imposing tower suggests, especially compared to circuit coasters with longer dispatch cycles.
Stats at a Glance
Park: Six Flags St. Louis, Eureka, Missouri. Manufacturer: Premier Rides. Designer: Werner Stengel (Ing.-Büro Stengel GmbH). Opened: April 10, 1998. Reverse Blast conversion: 2012. Height: 218 ft (66 m). Top speed: 70 mph (110 km/h). Acceleration: 0–70 mph in 3.8 seconds via 116 linear induction motors. Length: 1,300 ft (400 m). Inversions: 1 (traversed twice, once backward and once forward). Height requirement: 54 inches (137 cm).
Height Requirement and Restraints
Riders must be at least 54 inches (137 cm) tall to ride Mr. Freeze: Reverse Blast. The ride originally used over-the-shoulder restraints, but Premier Rides replaced them with individual ratcheting lap bars in 2002 at both Mr. Freeze installations, which is still the restraint system in use today. Each train holds 20 riders across five two-across cars.
The Ride Experience
Seated backwards, riders brace as the LIM array unleashes its full force in under four seconds. The train rockets out of the launch tunnel, crests the top hat, sweeps through a sharply overbanked curve, and climbs the vertical spike. A fleeting moment of weightlessness hangs at the 218-foot summit before the train drops back and charges forward through every element at full speed.
The shuttle format means each feature is experienced twice — once in reverse and once forward. That double-traversal of the top hat gives Mr. Freeze: Reverse Blast a relentless, back-to-back punch that far exceeds what its compact 1,300-foot layout might suggest.
History and Origins
Premier Rides built twin versions of the coaster — one at Six Flags St. Louis and one at Six Flags Over Texas — both intended for a 1997 debut timed to the Batman & Robin film, whose villain Mr. Freeze inspired the ride’s theme. Overheating problems with the LIM launch motors pushed both openings to spring 1998; St. Louis’s version opened April 10, 1998.
In 2012, Six Flags reversed the train orientation at both parks and renamed the ride ‘Reverse Blast,’ turning a forward launch coaster into a backward one without changing a single piece of track. St. Louis reopened under the new name on May 5, 2012.
The two installations have since diverged. Six Flags Over Texas moved away from a pure backward launch and, since 2023, runs one train forward and one backward each cycle. Six Flags St. Louis, by contrast, has kept the full Reverse Blast experience on both trains continuously since 2012 — meaning the St. Louis version is currently the only place to experience the complete backward-then-forward Mr. Freeze course.
Six Flags St. Louis in 2026 and Beyond
In spring 2026, Six Flags sold St. Louis and several other US parks to EPR Properties, which brought in operator Enchanted Parks to run them. The park is keeping the Six Flags St. Louis name through the 2026 season before becoming ‘Mid-America by Enchanted Parks’ starting in 2027. As of now, there’s no announced plan to rename or rethink Mr. Freeze: Reverse Blast itself — it’s continuing to operate as usual while the park’s branding changes around it.
Planning Your Visit
Six Flags St. Louis runs a seasonal schedule, typically open weekends in spring and fall and daily through the summer, with hours that shift throughout the season — so it’s worth checking the calendar before you go rather than assuming standard hours. Tickets are sold as single-day admission, multi-visit passes, and season memberships, each unlocking different perks like parking or dining add-ons.
For current hours, ticket prices, and any operational updates tied to the park’s 2026 ownership transition, check the official Six Flags St. Louis site before your visit.
Mr. Freeze Reverse Blast roller coaster FAQs
How fast does Mr. Freeze: Reverse Blast go?
It launches from 0 to 70 mph in about 3.8 seconds using a bank of 116 linear induction motors, then repeats the entire course again in the opposite direction.
How tall do you have to be to ride Mr. Freeze: Reverse Blast?
Riders must be at least 54 inches (137 cm) tall. The ride uses individual ratcheting lap bars rather than over-the-shoulder restraints.
Where is Mr. Freeze located at Six Flags St. Louis?
It’s in DC Comics Plaza, with a queue themed as ‘Snowy’s Ice Cream Factory’ referencing the ride’s Batman & Robin backstory.
Why is it called ‘Reverse Blast’?
In 2012, Six Flags St. Louis reversed the train orientation so riders face backwards during the initial launch. Every element of the course is experienced in reverse first, then again forward on the return trip.
Is there another Mr. Freeze coaster?
Yes — a mirror-image version operates at Six Flags Over Texas in Arlington, Texas. That installation also became Reverse Blast in 2012, but since 2023 it runs one train forward and one backward each cycle. Six Flags St. Louis is currently the only park still running the full backward-then-forward Reverse Blast experience on both trains.
Will Mr. Freeze change now that Six Flags St. Louis is becoming Mid-America by Enchanted Parks?
Six Flags St. Louis is keeping its name through the 2026 season before rebranding to Mid-America by Enchanted Parks in 2027. No changes to Mr. Freeze: Reverse Blast itself have been announced.
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