Earlier quoted context omitted.
You could replicate that with an eyeball mounted on gimbals.
Sure, you could replicate anything given enough budget. It wouldn't be trivial, as saccades and blinks are among the fastest motions made by the human body.
You just killed a person and extracted their eyes to use to open some door. I think you have the budget for something that you can make for $200 with Lego Technic...