Portal 2 > Discussioni generali > Dettagli della discussione
XchocomanX 15 nov 2012, ore 14:13
Professor Portal Help
I need help to get this achievment....can anyone help me? D:
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MineCraft lover 16 nov 2012, ore 7:46 
which achievment is it?
XchocomanX 16 nov 2012, ore 8:45 
Professor portal is the name i have to play the co-op calibration with someone who has never done it before ._.
xXJackPlaysXx 25 gen 2013, ore 12:54 
did you do it cuz i will
norill 21 feb 2013, ore 16:45 
i would also like to play co-op with someone to get this achievement
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Data di pubblicazione: 15 nov 2012, ore 14:13
Messaggi: 4