Mr. Freeze: Reverse Blast is the signature launch coaster at the Eureka, Missouri theme park long known as Six Flags St. Louis and, as of August 2026, rebranded as Mid America Adventure under new operator Enchanted Parks. It’s a Premier Rides LIM shuttle coaster that fires riders backwards from a dead stop to 70 mph in under four seconds, and it remains one of only two Mr. Freeze installations ever built.
This guide covers everything people search for about the ride: exactly how fast and tall it is, the height requirement, whether it’s actually scary, where to find it in the park, what makes this version different from its Texas twin, and what the ownership change and rebrand mean for the ride, its Batman-villain theming, and your visit.
Quick Answer
Mr. Freeze: Reverse Blast is a Premier Rides LIM shuttle coaster 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 DC Comics Plaza at the park formerly branded Mid America Adventure (formerly Six Flags St. Louis), now operating as Mid America Adventure, 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 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 two trains running back-to-back on a sliding station platform, lines can move faster than the ride’s tall, imposing tower suggests, especially compared to circuit coasters with longer dispatch cycles. The park’s skip-the-line program has historically covered Mr. Freeze, worth considering on busy summer weekends when the queue backs up toward the plaza entrance — check current line-skip options on the official ticketing page before you go, since program names and inclusions can change under new ownership.
Stats at a Glance
Park: Eureka, Missouri (operated as Six Flags St. Louis 1971–2026; now Mid America Adventure). 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 top hat, traversed twice — once backward, once forward. Height requirement: 54 inches (137 cm).
The course itself breaks down into three main elements: a roughly 150-foot inverted top hat that flips riders fully upside down, an overbanked curve that carries them through a wide arc of rotation, and the 218-foot vertical spike where the train briefly hangs before dropping back through the whole layout forward.
Height Requirement and Restraints
Riders must be at least 54 inches (137 cm) tall to ride Mr. Freeze: Reverse Blast — there’s no maximum height limit, but the individual ratcheting lap bars are sized for a fairly wide range of body types. 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. Because the lap bars ratchet down snugly rather than clamping over the shoulders, the top hat’s hang time registers more sharply than on shoulder-harness coasters of similar size.
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 the 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 — giving the ride a relentless, back-to-back punch that far exceeds what its compact 1,300-foot layout might suggest.
Is Mr. Freeze: Reverse Blast Scary?
By coaster-intensity standards, Mr. Freeze: Reverse Blast is more disorienting than it is rough. There’s no drop to brace for and only one inversion, but the combination of a violent backward launch, riding the entire course blind (you can’t see where you’re headed until the train reverses), and a full-body inversion at speed makes it feel more extreme than its stats alone suggest.
First-time riders consistently describe the backward launch as the scariest part — not knowing when the LIM motors will fire, or what’s coming next, tends to spike anxiety more than the forward repeat does, since by then you already know the layout. If you’re coaster-averse but curious, riding once forward-facing isn’t an option here — Reverse Blast only runs the full backward-then-forward cycle, so there’s no way to skip the backward half.
Mr. Freeze St. Louis vs. Six Flags Over Texas: What’s Different
Premier Rides built twin versions of the coaster — one in Eureka, Missouri 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; the Missouri version opened April 10, 1998, as a near-mirror image of the Texas layout.
In 2012, both parks reversed the train orientation and renamed the ride ‘Reverse Blast.’ 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. The Missouri coaster has kept the full Reverse Blast experience on both trains continuously since 2012 — meaning it’s currently the only place to experience the complete backward-then-forward Mr. Freeze course.
Mid America Adventure Is Now Mid America Adventure: What Changes for Mr. Freeze
In early 2026, EPR Properties acquired this park along with several other former Six Flags properties, and hired Enchanted Parks to operate them. On August 27, 2026, the park officially dropped the Six Flags name and became Mid America Adventure — a callback to its original 1971 name, Six Flags Over Mid-America — marking the first time in 55 years the park hasn’t carried the Six Flags brand.
For riders, the practical experience of Mr. Freeze: Reverse Blast hasn’t changed: it’s still the same Premier Rides shuttle coaster, in the same location, with the same stats and restraints. What is genuinely unsettled is the DC Comics theming — Six Flags’ licensing deal with Warner Bros. covered characters like Mr. Freeze and Batman, and Enchanted Parks has stated the long-term future of that DC and Looney Tunes theming at the park is undetermined as it develops its own branding. The ride itself isn’t going anywhere, but don’t be surprised if ‘DC Comics Plaza’ signage and the Snowy’s Ice Cream Factory queue theme eventually change even though the coaster underneath stays the same. If you’re planning a trip specifically for the Batman-villain theming, go sooner rather than later.
Planning Your Visit: Tickets, Passes, and Hours
Admission now runs through the Enchanted Parks ticketing system rather than the old Six Flags membership structure. The park sells single-day tickets, and two season pass tiers — a base pass and a higher tier with added perks like parking and in-park discounts — with pricing that resets each season, so treat any specific dollar figure you see elsewhere as a snapshot rather than current pricing.
Operating hours follow the seasonal pattern typical of Midwest amusement parks: closed or weekends-only in early spring and late fall, daily operation through the summer peak, and extended hours around events like the park’s fall Fright Fest. Because both the park’s name and its ticketing platform changed in 2026, don’t rely on cached hours or prices from before the rebrand — always confirm the current calendar, ticket prices, and Fast Lane or skip-the-line availability on the official Mid America Adventure site before you visit.
Mr. Freeze Photo Archive: June 2002
These are original ThrillZing photos of Mr. Freeze taken at Mid America Adventure on June 29 and 30, 2002, restored and upscaled from the original camera files, years before it was turned around as Reverse Blast. They show the Premier launched shuttle coaster in its ice-blue paint: the sign and the Snowy’s ice cream entrance, trains climbing the vertical tower and cresting the twisted spike, the inverted top hat against the clouds, and the tower at dusk.
Mr. Freeze Reverse Blast FAQs
Is Mr. Freeze: Reverse Blast still at Mid America Adventure?
The ride itself hasn’t moved or changed, but the park is no longer branded Mid America Adventure. As of August 2026 it operates as Mid America Adventure, owned by EPR Properties and run by operator Enchanted Parks, so you’ll see both names used online for a while as the rebrand settles in.
How fast does Mr. Freeze: Reverse Blast go?
It launches from 0 to 70 mph in about 3.8 seconds using 116 linear induction motors, making it one of the fastest-accelerating launches of its era.
How tall do you have to be to ride?
You must be at least 54 inches (137 cm) tall. There is no maximum height, and the ride uses individual ratcheting lap bars rather than over-the-shoulder harnesses.
Is Mr. Freeze: Reverse Blast scary?
It’s more disorienting than physically rough — one inversion, no big drop, but a blind backward launch that first-time riders consistently say is the scariest moment on the ride.
Do you ride Mr. Freeze backwards the whole time?
No — you launch backwards through the full course, then the train reverses direction at the top of the 218-foot spike and runs the entire layout forward, so you experience every element twice, once each way.
How is this different from Mr. Freeze at Six Flags Over Texas?
Both opened in 1998 as near-identical Premier Rides shuttle coasters and both were converted to backward launches in 2012. Since 2023, the Texas version alternates one forward-launch train and one backward-launch train per cycle, while the Missouri ride has kept both trains running the full backward-then-forward Reverse Blast cycle continuously since 2012.
Will the Batman and DC Comics theming stay after the rebrand?
It’s uncertain. Enchanted Parks has said the future of DC Comics and Looney Tunes licensed theming across its newly acquired parks is still undetermined, so the DC Comics Plaza setting and Snowy’s Ice Cream Factory queue could eventually be re-themed even though the coaster itself stays in place.
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