I'm surprised that no one has posted info on that upper right flipper. Its kinda like any other ball trapping upper flipper...but there is nothing behind it in WOZ. Behind the upper right flipper is a exit hole where the ball is fed directly back into the shooter lane. A very clever innovation on the "Spider-Sense" flipper raising trick, used in a new mechanical way.

I also liked how two events go on, during certain key moments. I was able to lock a ball. During the ball lock, on the LCD screen, spectators see a clip from the movie and a message that "Dorothy was captured". What you notice as the actual player is the monkey transporting the pinball to the upper playfield during the triggered movie clip. Really cool!