Millennium Force were installed to illuminate the ride. Twenty COLORado Range and ten COLORado Ridge wash lights were installed at the base of the lift hill structure. When it opened in May 2000, Millennium Force broke six world records and used a new magnetic braking system instead of friction brakes found on most roller coasters. This new system enabled the use of a shorter brake run, which slows the train from down to a standstill in six seconds. Millennium Force held the records for tallest and fastest complete-circuit roller coaster until August 2000, when Steel Dragon 2000 opened. Millennium Force held the
Kingda Ka The ride was closed for three months for repairs and reopened on August 21, 2009. On August 27, 2011, Kingda Ka suffered unspecified damage shortly before Hurricane Irene; that same day, Six Flags Great Adventure did not open due to the approaching hurricane. While it is unknown whether additional damage occurred due to the storm, the coaster was damaged to the extent that it could not run before Irene. Kingda Ka remained closed until the start of the 2012 operating season on April 5. Shortly before 5:00 pm on July 26, 2012, a young boy was sent to the hospital