Portal 2 achievements

Portal 2

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There are a maximum of 50 Portal 2 achievements worth 1,686 (1,000)

118,127 tracked gamers have this game, 11,999 have completed it (10.16%)

Achievement Details

Obstacle Building in Portal 2

Obstacle Building22 (15)

Complete all test chambers in the Excursion Funnels co-op course

  • Unlocked by 53,824 tracked gamers (46% - TA Ratio = 1.48) 118,127  

Achievement Guide for Obstacle Building

dropK1CK ninJA
440,119 (234,075)
dropK1CK ninJA
Achievement won on 29 Apr 11
TA Score for this game: 1,686
Posted on 30 April 11 at 13:12
This solution has 10 positive votes and 0 negative votes. Please log in to vote.
This is the fourth course in the Portal 2 co-op campaign. Things start to get difficult with these puzzles. Trying to completed these chambers without dying is a nice little challenge that can chew up an hour or two.

These video guides should make things easier for you.

Note: I couldn't find split-screen videos, but I will update this solution once I find some.
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