I imagine this as you go in and instead of grabbing 3D glasses you pick out a blaster gun. Then move into the main exhbit hall. Which has the moving walkway with a long screen on both sides. Probably with some minor physical set pieces like tables with pens, beer coozies, and other trade show favorites (available for purchase in the gift shop, obviously), in front of the screens to add some depth. So you step on the belt and start blasting away at targets on both sides. Your score shows up on the blaster.
I can see this being stupid popular with the GP.
I have a few questions, like, how will they deal with the hand rails on the moving walkway? They can't be stainless steel, or 3 year olds will be facing a wall of stainless steel. Would the blasters work through plexiglass? Is it going to be 1 moving walkway and done? Or 2 or 3, like TSMM layout?