A suspended roller coaster is a steel roller coaster model in which passengers are seated in open-top, boat-like gondolas that hang under the track. Traveling beneath the rolling stock, each gondola is affixed to a pivoting fulcrum or hinge assembly, allowing for the entire car to swing outwards and side-to-side as the train makes sharp turns along the course. Riders are typically secured with over-the-shoulder restraints. Due to the nature of the ride and the swinging effect, suspended roller coasters do not feature inversions, and are generally considered “family” rides; certain suspended roller coasters may be considered more or less intense than others, however.

An inverted roller coaster is a type of steel roller coaster in which the train runs under the track with the seats directly attached to the wheel carriage. Riders are seated in open cars, letting their feet swing freely. The inverted coaster was pioneered by Swiss roller coaster manufacturer Bolliger & Mabillard in the early 1990s with the development of Batman: The Ride, which opened at Six Flags Great America on May 9, 1992.