A boomerang ridden inverted and face-to-face — three inversions forward, then the whole thing backward.
Photo: HoodedBeast09 · CC BY-SA 4.0 · Wikimedia Commons
Flight of FearKings Island · 74 ft · 54 mphAlso at Kings Island
The Flash: Vertical VelocitySix Flags Great Adventure · 118 ft · 60 mphAlso by Vekoma
Batman: The Dark KnightSix Flags New England · 118 ft · 55 mphSimilar height
Boomerang: Coast to CoasterSix Flags Fiesta Texas · 125 ft · 47 mphAlso by Vekoma
FlashbackSix Flags New England · 125 ft · 47 mphAlso by Vekoma
Guardians of the Galaxy: Cosmic RewindEPCOT · indoor · 60 mphAlso by Vekoma