Portal

8 of 15 ach. unlocked (54%)
MichaelMCP's achievements in Portal
Beat two Portal advanced maps.
Do whatever it takes to survive.
Knock down a turret with another turret.
Beat four Portal advanced maps.
Complete Portal.
Acquire the fully powered Aperture Science Handheld Portal Device.
Make the correct party escort submission position decision.
Fall 30,000 feet.
Mar 3, 10
Earn gold medals on all Portal challenges.
Locked
Earn bronze medals on all Portal challenges.
Locked
Detach security cameras from the walls.
Locked
Jump 300 feet.
Locked
Earn silver medals on all Portal challenges.
Locked
..?
Locked
Beat all six Portal advanced maps.
Locked
(0.2570/d/web11)