The Illusion is a fully enclosed tubular steel roller coaster, manufactured by Vekoma.

The whole track is built inside and around a dark room, except the base station where people have to take place in the train.

Once the train is at top, the track enters the outer room and changes into a bumped down-going helix.

The outer room contained 35 mm projections of respectively fire, shattering glass, time portals and gear wheels.

As of April 30, 2016, until end of season 2022, the "Revolution" steel roller coaster ride by Vekoma in Bobbejaanland was expanded with Virtual Reality.

Later on the first part of the train was for the Mount Mara-ride where passengers wore Samsung Gear VR glasses.

Bobbejaanland announced in January 2023 that Mount Mara will not be longer operational due to lack of interest.

In 1993, the ride was rethemed for the park's "Howloween" celebration and was fitted with a nuclear reactor and various smoke spouting aliens, found during the descent.

However, sometime after Premier Parks acquired Six Flags in 1998, the project was cancelled, and Chaos and the three other roller coasters would sit in storage unused for several years.