For scenes taking place on the Disney World thrill rides, Dave Goelz puppeteered Miss Piggy instead of Frank Oz, who claimed to have motion sickness.
As this was the last Muppets project worked on before Jim Henson's death, it was the last time Henson performed the voices for many of his best-known characters, including Rowlf, the Swedish Chef, and Kermit. Henson died just ten days after the broadcast premiere.
As an in-joke, the announcer at the Indiana Jones attraction says that they need someone from the audience who resembles Tom Selleck, the actor. Tom Selleck was the original choice for Indiana Jones but he eventually declined the offer to play him in the Raiders of the Lost Ark in order to star in his own detective TV show, P.I. Magnum. The show became a big hit on television at the time. Clips from Selleck's Indiana Jones audition tapes were included in the Indiana Jones Trilogy making-of documentary.