The world record-breaking roller coaster had a bumpy maiden voyage.
"Steel Vengeance," the new heart-stopping steel and wood-framed monster roller coaster at Cedar Point in Sandusky, Ohio, bumped" another train as it was in the loading station, according to a park official.
"Steel Vengeance is currently closed while the incident is under review, but we anticipate that it will reopen tonight," according to a statement to ABC News on Saturday evening by the theme park's rep.
The rep confirmed that at 1:30 p.m. on Saturday, "a Steel Vengeance train returning to the station lightly bumped a parked train in the loading station."
Both trains carried riders on them, the rep said. Only four guests asked to be evaluated by a first aid team, the rep added, before they joined the rest of the riders in the park.
When gates opened Saturday there was a clear fervor by young thrill-seekers to experience three minuted of terrifying fun at Cedar Point, which bills itself "The Roller Coaster Capital of the World."
Happy Opening Day!May 5, 2018
Before the shutdown, "Steel Vengenace" -- with its 205-foot peak, 74 mph speed and 90-degree drop -- appears to have lived up to the hype as the world's tallest, fastest and wildest hybrid roller coaster, replete with its own cinematic trailer.
In it, a Wild West themed revenge story unfolds and a cast of ornery, animated characters are are planted in front of the scream machine.
The trailer's narrator called it a "menacing and twisted machine so big and brazen, the likes of it had never been seen."