Batman: The Ride at Six Flags Fiesta in San Antonio, Texas glides riders down its 12-story tracks along sharp dips and curves; but its innovation comes from completely flipping you over six times on the tracks while your seat rotates 360 degrees, which the park describes as a 4-D experience. Even as you're lobbed down two vertical drops of nearly 90 degrees, you'll revolve like a human gyroscope. Speaking of which, it's probably best to avoid greasy foods like gyros before a tumble down the tracks, lest you revisit lunch all over your neighbors.
The "mind-warping thrill coaster", as Six Flags fondly calls it, also features special effects, and uses high-tech "magnetic fins" to propel you forward on your stomach-turning journey. It's also the first on the planet to use "magnetic coaster technology".
Before you brave the ride for yourself in 2015, when it's set to open, check out this video for a titillating look at the scariest ride we've ever seen.
You know, right after the tea cup ride. That thing is still frightening.