Portal

9 of 15 ach. unlocked (60%)
TheSilent's achievements in Portal
Beat two Portal advanced maps.
Dec 24, 11
Do whatever it takes to survive.
Dec 23, 11
Knock down a turret with another turret.
Dec 23, 11
Beat four Portal advanced maps.
Dec 24, 11
Complete Portal.
Dec 24, 11
Acquire the fully powered Aperture Science Handheld Portal Device.
Dec 23, 11
Jump 300 feet.
Dec 23, 11
Make the correct party escort submission position decision.
Dec 23, 11
Beat all six Portal advanced maps.
Dec 24, 11
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
(0.1933/d/web2)