Watch as the worlds of Left 4 Dead 2 and Portal 2 collide

So, what happens when you take Left 4 Dead 2 and mix it with Portal 2? Well, this is what happens. As you can see in the video below, which is footage from a fan-made level titled “Suicide Blitz 2,” two lovely ladies are just having fun playing the horror-shooter until they end up finding a portal. Said portal takes them to the world of Portal 2. What results is all sorts of craziness, as you can see below.

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