Portal

6 of 15 ach. unlocked (40%)
Superducky's achievements in Portal
Do whatever it takes to survive.
Feb 20, 11
Knock down a turret with another turret.
Nov 4, 10
Complete Portal.
Apr 21, 11
Acquire the fully powered Aperture Science Handheld Portal Device.
Oct 31, 10
Make the correct party escort submission position decision.
Apr 21, 11
Fall 30,000 feet.
Oct 31, 10
Earn gold medals on all Portal challenges.
Locked
Earn bronze medals on all Portal challenges.
Locked
Detach security cameras from the walls.
Locked
Beat two Portal advanced maps.
Locked
Beat four Portal advanced maps.
Locked
Jump 300 feet.
Locked
Earn silver medals on all Portal challenges.
Locked
..?
Locked
Beat all six Portal advanced maps.
Locked
(0.0941/d/web8)