errückt (German for crazy or insane) was a water slide at the Schlitterbahn Kansas City water park. At 168 feet 7 inches (51.38 m), the slide surpassed Kilimanjaro at Aldeia das Águas Park Resort to become the world's tallest water slide when it opened in 2014. Following a fatal accident involving a 10-year-old boy in 2016, the ride was closed permanently, and criminal charges led to the arrests of several individuals including the park's owner and a co-designer of the ride.