Portal 2 User Reviews
Portal 2 will see players introduced to a host of fresh puzzles, devious new test chambers in never-before-seen areas of Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion from the original Portal. The game’s all-new co-operative mode will feature its own unique campaign and characters, and will force players to both act and think together.
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One of the achievements is called "Narbacular Drop". Narbacular Drop was an indie game that eventually became Portal.Quotes
Warning: Neurotoxin levels are reaching dangerously un-lethal levels.—Announcer
Great work! Because this message is prerecorded, any observations related to your performance are speculation on our part. Please disregard any undeserved compliments.—Announcer
Those of you who signed up to be injected with praying mantis DNA, I've got some good news, and, some bad news. Bad news is, we're postponing those tests indefinitely. Good news is, we've got a much better test for you: fighting an army of mantis-men! Pick up a rifle and follow the yellow line; you'll know when the test starts.—Cave Johnson
Burning people! He says what we're all thinking!—GLaDOS