Halloween Horror Nights VII ran for 18 days, from October 3 to November 1. It featured three haunted mazes; Hotel Hell, Tombs of Terror, and Universal's Museum of Horror. The event also included The Midway of the Bizarre scarezone, three shows, The Festival of the Dead Parade, and a Frankenstein exhibit in Studio 54. Advertisements for the event showed a small demon keeping an eye from shutting, and ended with the events tag line "You'll Never Sleep Again".
Bill and Ted's Excellent Halloween Adventure 1997 overview