Portal

8 of 15 ach. unlocked (54%)
ObiwanCumBlowMe's achievements in Portal
Beat two Portal advanced maps.
Apr 26, 11
Do whatever it takes to survive.
Knock down a turret with another turret.
Beat four Portal advanced maps.
Apr 26, 11
Complete Portal.
Acquire the fully powered Aperture Science Handheld Portal Device.
Jump 300 feet.
Make the correct party escort submission position decision.
Earn gold medals on all Portal challenges.
Locked
Earn bronze medals on all Portal challenges.
Locked
Detach security cameras from the walls.
Locked
Earn silver medals on all Portal challenges.
Locked
Fall 30,000 feet.
Locked
..?
Locked
Beat all six Portal advanced maps.
Locked
(0.0983/d/web2)