Portal is a first-person puzzle game. Players must solve physical challenges by opening portals to maneuver objects, and themselves, through the enigmatic Aperture Science Laboratories.
Introducing Portal
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Description
A video explaining the concept behind Portal, a mini-game to be included with Half-Life 2: Episode Two.
awsome movie
even better game
He didnt make it... but nice...:)
LOOOOOOLLLLZZZZZ!!!!
cool
i like it
One of the best trailers ever
watch that trailer before dude a thousand time nothing really speacail
why cant valve return these particals and portal gun they looked mutch better
For some reason, I wished they made the graphics the same as in this video :(
I like the new portal better then the old portal
And also STEAM TOOK THE LAST LEVEL OF PORTAL 2 CRACK V. also we got the portal 2 cracked V. because we didn't have enough money.............AND IF YOU ASK WHY I EVEN PUT IT ON STEAM IS BECAUSE I DIDN'T KNOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
i wuv the last wevel
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