Portal 2 achievements
1,701
(1,000)

Portal 2

4.6 from 9772 votes

There are a maximum of 50 Portal 2 achievements worth 1,701 (1,000)

125,002 tracked gamers have this game, 12,302 have completed it (9.84%)

Achievement Details

Confidence Building in Portal 2

Confidence Building13 (10)

Complete all test chambers in the Mass and Velocity co-op course

  • Unlocked by 75,300 tracked gamers (60% - TA Ratio = 1.28) 125,220  

Achievement Guide for Confidence Building

AuthorSolution
APOPHIS1989
316,617 (191,998)
APOPHIS1989
Achievement won on 21 Apr 11
TA Score for this game: 1,661
Posted on 21 April 11 at 13:01
This solution has 14 positive votes and 0 negative votes. Please log in to vote.
These are the second set of co-op chambers to complete. They are fairly straightforward, with the classic Portal feel to them. Most involve a cube or similar object and launching platforms. Good communication with your partner is a big help.
Please log in to comment on this solution.
There is 1 other Solution for this achievement
Do you have a question about this achievement? Please post it in the Portal 2 Forum

Related Achievements and Trophies