Portal 2
Xbox 360
- 1,636,999 Achievements Earned
- 85,638 Players Tracked
- 50 Total Achievements
- 7,548 Obtainable EXP
- 1,000 Gamerscore
- 5,096 100% Club
Complete all test chambers in the Hard-Light Surfaces co-op course
15
38.59%
Uncommon - 103.00 EXP
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