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 Safri Duo; almost their entire Episode II album is played in the queue and station. The other is the remix version of Survivor's "Eye of the Tiger", played by DJ Quicksilver. Both of these may be heard during the queue and in the station. A train may occasionally experience a rollback following a launch. A rollback occurs when the train fails to make it over the top of the tower and descends back down the side it was launched. Kingda Ka includes retractable magnetic brakes on its launch track to prevent a train from rolling back into the loading station.