Half-Life 2 Easter Egg - "Back to the Future" Reference
In the first level of Half-Life 2, one of the Overwatch security guards asks you to follow him. Follow him into the room and he'll take off his mask and you'll see that it's Barney Calhoun. Dr. Kleiner will then come on the screen. When Barney says "Look who's here," the professor says "Great Scott! It's Gordon Freeman!" Notice that when he says "Great Scott!" he says it the same way Doctor Brown said it in all three "Back to the Future" films.
Another reference to the film is the box of plutonium under Kleiner's desk. Like Back to the Future, the box is yellow and looks just like the one from the movie.
Half-Life 2(Full version or demo) and computer
Pictures and Videos
|The picture of the plutonium under the doctor's desk.
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