Dæmonen is a floorless steel roller coaster at the Tivoli Gardens amusement park in Copenhagen, Denmark. Designed by Bolliger & Mabillard, it reaches a height of , is long, and reaches a maximum speed of . The roller coaster features a vertical loop, an Immelmann loop, and a zero-gravity roll. Dæmonen replaced Slangen, a family roller coaster, and officially opened on 16 April 2004. A record number of guests attended the park that year, but the public has since given the ride mixed reviews. History The plans to build the roller coaster, then nameless, was announced in August 2003, to replace Slangen. The idea had been three years in the making and Tivoli had held a procurement involving four roller coaster manufactures, with Bolliger & Mabillard being chosen to build the new roller coaster. With a total cost of 75 million DKK (€10 million), the attraction was at the time Tivoli's biggest investment in modern times, and the most expensive roller coaster in Denmark. It was named Dæmonen in January 2004. Slangen, Tivoli Gardens's family roller coaster, closed on 21 September 2003 to make room for Dæmonen. Once the roller coaster was demolished, construction for the new roller coaster commenced. By the beginning of December, most of the brake run and station portions of the track were erected. By the new year, the lift hill was topped off. The first drop was completed by the end of January 2004 and the last piece of track was placed in February. It opened on 16 April that year, and was sponsored by Mazda for its first three years in operation. On 14 July 2007, Dæmonen got stuck during a ride, and the passengers would have to wait an hour before they could be released by the fire department. On 20 July 2008, the ride stopped 25 meters above the ground, and 24 passengers were evacuated via built-in stairs. The latter incident was caused by a loose connection in an electronic sensor, which triggered the emergency brakes. On 6 April 2017 an optional, up-charge virtual reality experience was added to the ride. Utilising Samsung VR headsets, the graphics depict scenes of dragons, demons, and other elements from Chinese mythology. Ride experience After riders have boarded and the station floor is retracted, the train begins to climb the chain lift hill. Once at the top, the train makes an approximate 180-degree downward left turn