Here is a home video my father took during the Toy Story showing at the El Capitan Theatre in Los Angeles, California. This video was taken in December 1995. Before the film I think there was a bit of a stage show, but I may be confusing that with another event.

The funhouse (Totally Toy Story) was amazing. I remember playing the Toy Story video game for the Sega Genesis, drawing on art easels, an going through an army man obstacle course. And playing an alien wack-a-mole (like the one featured in the film) game. Here is an excerpt from Wikipedia:

"For the November 1995 Toy Story premiere, Disney rented the next door building for Totally Toy Story, a multimedia funhouse and a promotional event for the movie."