Obstacle Building Achievement in Portal 2

  • Obstacle Building

     

    15

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

      
  • How to unlock Obstacle Building

    This can gained in either split-screen or over XBL.

    These are a total of 8 chambers you play in this coop course. Simply go through them and once you reach the end of the 9th chamber, the achievement will unlock once you're back at the HUB.

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Comments
  • Co-op related cant miss it, once the final chamber is done( and back to hub) it will pop
  • I need a co op partner. Hit me up! Gt: plnkfloydian

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