rolling thunder opened in 1979. to mark the 100th anniversary of roller coasters in the usa, rolling thunder's coaster 2 side was renamed "rednuht gnillor," the backwards spelling of "rolling thunder," in 1984. the trains were turned around so riders would view the ride while riding backwards. during this season, rednuht gnillor's warning signs were placed in the back of the station and on the back of the lift hill so riders could see them.