This weekend, Six Flags Over Texas confirmed via Twitter the permanent closure of the Harley Quinn Spinsanity flat ride. Harley Quinn Spinsanity officially opened at Six Flags Over Texas on July 14, 2018 as part of the park’s newer Gotham City area expansion. Harley Quinn Spinsanity featured a unique triple box design, creating the ability to spin around on three different axes at the same time.