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15 of 15 (100%) achievements earned:
Personal Achievements
 

Lab Rat

Acquire the fully powered Aperture Science Handheld Portal Device.
Unlocked 29 Dec, 2022 @ 8:27am

Fratricide

Do whatever it takes to survive.
Unlocked 29 Dec, 2022 @ 8:27am

Partygoer

Make the correct party escort submission position decision.
Unlocked 29 Dec, 2022 @ 8:27am

Heartbreaker

Complete Portal.
Unlocked 29 Dec, 2022 @ 8:27am

Terminal Velocity

Fall 30,000 feet.
Unlocked 29 Dec, 2022 @ 8:27am

Long Jump

Jump 300 feet.
Unlocked 29 Dec, 2022 @ 8:27am

Cupcake

Beat two Portal advanced maps.
Unlocked 29 Dec, 2022 @ 8:27am

Fruitcake

Beat four Portal advanced maps.
Unlocked 29 Dec, 2022 @ 8:27am

Vanilla Crazy Cake

Beat all six Portal advanced maps.
Unlocked 29 Dec, 2022 @ 8:27am

Basic Science

Earn bronze medals on all Portal challenges.
Unlocked 29 Dec, 2022 @ 8:27am

Rocket Science

Earn silver medals on all Portal challenges.
Unlocked 29 Dec, 2022 @ 8:27am

Aperture Science

Earn gold medals on all Portal challenges.
Unlocked 29 Dec, 2022 @ 8:27am

Camera Shy

Detach security cameras from the walls.
Unlocked 29 Dec, 2022 @ 8:27am

Friendly Fire

Knock down a turret with another turret.
Unlocked 29 Dec, 2022 @ 8:27am

Transmission Received

..?
Unlocked 29 Dec, 2022 @ 8:27am