It is a "zombie containment unit" that looks like there's an actual zombie inside!
It's a metal box with a TV screen on the front that looks like a window. And it shows a guy in zombie make-up banging on the glass. The walls actually move when it shows him pounding on them!
And right when it shows the glass break, you get blasted with compressed air. Imagine seeing this in a Haunted House!
Check It Out! You Would Jump!