Built over the side of a quarry, this  floorless coaster is purportedly the fastest B&M coaster of its type, with a top speed of 70mph.   It features some exquisite scenery and nice, long (4,025 ft.) track.  As the ride is dispatched, the floor drops out and the train, with riders sitting four across, climbs a 168-foot lift hill which hangs over a cliff.   The train then enters a helix, drops 163 feet at a deliciously wicked right angle and shoots up into a pretty impressive 145-foot vertical loop, followed by a zero-g roll.   The vertical loop was the largest on any coaster until 2013. There are six inversions in all, the other four being a cobra roll and double corkscrew.  I thought that the combination of elements in such a scenic setting made for a very good ride.  And at 2:35, you get a lot of ride.  I liked Superman: Krypton Coaster enough to ride it three times in succession .and found it superior to other coasters of this type that I’ve ridden.  4 out of 5 stars.  For more information about rides at Six Flags Fiesta, visit www.sixflags.com/fiestatexas/‎