Portal 2

Portal 2

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There are a maximum of 50 Portal 2 achievements worth 1,575 (1,000)

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Achievement Details

Party of Three in Portal 2

Party of Three45 (25)

Online/Offline - These achievements can be obtained in either an online or offline mode.Cooperative + - These achievements can be obtained by two or more players and everyone who has met the requirements will earn the achievement. Find the hidden companion cube in co-op test chamber

Achievement Guide for Party of Three

113,484 (73,757)
Achievement won on 20 Apr 11
TA Score for this game: 1,575
Posted on 20 April 11 at 06:44, Edited on 21 November 11 at 23:48
This solution has 85 positive votes and 6 negative votes. Please log in to vote.
This is found on Excursion Funnels: Chamber 9 in co-op mode.

Easily done split screen with two controllers but way more fun with a partner.

Not my video props to the guy who made it.
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