Portal 2
Xbox 360
- 1,649,747 Achievements Earned
- 86,463 Players Tracked
- 50 Total Achievements
- 7,567 Obtainable EXP
- 1,000 Gamerscore
- 5,125 100% Club
After completing co-op, complete Calibration Course online with a friend who hasn’t played before
75
9.58%
Very Rare - 415.00 EXP
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