According to C.P.'s 1999 HalloWeekends Fright Guide, the following rides were open on Friday night: Demon Drop, Midway Carousel, Raptor, Cedar Downs, Cadillac Cars, Kiddy Kingdom (6 rides only), Matterhorn, Scrambler, Dodgem #2, Wildcat, Iron Dragon, Mine Ride, Mantis, Giant Wheel, Wave Swinger, Swan Boats, and Power Tower.
I'm sure that the listing for this year will be similar to last year with the addition of Millennium Force and probably the deletion of the Giant Wheel. I'm surprised that Disaster Transport doesn't run on Friday's considering that the Cedar Point Cemetery is in the same building.