Left 4 Dead 2 Has A Crazy Portal 2 Easter Egg

Well, this takes the…cake on intricate, almost ridiculous easter eggs. I’ve yet to see anything in a game that compares to how detailed and crazy this easter egg is, anyway. Watch as two girls playing L4D2 stumble upon a Portal 2 easter egg that takes them to the Aperture Science labs, allows them to think with portals, and, of course, listen to GlaDoS berate them.