The now defunct FlashBack At SIX FLAGS MAGIC MOUNTAIN. Opened in 1985 as ZForce at Six Flags Great America, it was the first and only "Space Diver" roller Coaster ever to be built by Intamin AG of Switzerland. As part of Six Flags "ride rotation" program, it was moved to Six Flags Over Georgia, were it reopened as ZForce in 1988. Then the ride closed and was moved for the final time to Six Flags Magic Mountain and was renamed Flash Back in 1992. Flash Back would operate rarely in the winter season after Hurricane Harbor opened. It last operated in early 2003. It stood dormant until it was torn down for scrap metal, Dec 20th 2007. Length: 1900' Height: 86' Inversions: 0 Speed: 35 mph Duration: 1:30 Six Flags Great America as Z-Force (1985-1887) Six Flags Over Georgia as Z-Force (1988-1990) Six Flags Magic Mountain as Flashback (1992-2007) RIP ZForce/FlashBack 1885-2007 (C) Ryan Childers.