The scissor thing from Kongfrontation might work well. Also, the cables may only be for the sake of illustrating the concept in patent form and may differ in reality...
It seems to me more like an interactive dark ride, like MiB or Buzz Lightyear.. but standing in Iron Man suits and using your hands as the gun. Oh, and you bob up and down, fly and pretty much be Iron Man. Hopefully without vomiting.