Located near International Drive on Major Boulevard across from Universal Orlando Resort, the fun house expanded over time to include a laser-tag facility, an arcade, a dinosaur-themed mini golf course, and other attractions.

To promote the 1976 opening of Mystery Fun House, Aaron Fechter's Creative Engineering created an animatronic character by the name of Willie Wabbit to be installed at the Orlando International Airport.

Although he never appeared outside of the airport, Willie was a success for the MFH, while also serving as an early influence for the technology behind CEI's Rock-afire Explosion for ShowBiz Pizza Place.

There was also a show about three quarters of the way through the Fun House with music, lights, special effects and a video of the Wizard projected on a large screen.

The King, a 9-foot tall lion who impersonated Elvis Presley, was another Pizza Time Theatre animatronic that had been acquired by MFH and installed to the left of the restaurant's ordering counter (adjacent to the WizBangs).