1. Portal 2 Achievements
  2. Obstacle Building achievement
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Obstacle Building achievement in Portal 2

Obstacle Building

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

Obstacle Building0
1 guideOnline/Offline - These achievements can be obtained in either an online or offline game mode.Cooperative - These achievements can be obtained by two or more players in a cooperative game mode who have met the achievement requirements.
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How to unlock the Obstacle Building achievement

  • dropK1CK ninJAdropK1CK ninJA
    29 Apr 2011 30 Apr 2011
    17 0 0
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    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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