The Mary Poppins figure has a steel rod attached to her back, which supports the entire figure. The other end is connected to some sort of mechanical devices that travels up and down. You can see it from certain angles.
And I didn't realize the bullet holes appeared and disappeared, so someone else will have to address that.
Maybe I'm mistaken about the glass, but I'm almost positive that holes were made.
You might be confusing the bullet holes for the gun "shots" coming from the car. I just watched a POV and I seconded guessed my self there.I must be mistaken.
Register on WDWMAGIC. This sidebar will go away, and you'll see fewer ads.