Objective: Acquire the fully powered Aperture Science Handheld Portal Device.
Objective: Do whatever it takes to survive.
Objective: Make the correct party escort submission position decision.
Objective: Complete Portal.
Objective: Knock down a turret with another turret.
Objective: Beat two Portal advanced maps.
Objective: Beat four Portal advanced maps.
Objective: Jump 300 feet.
Vanilla Crazy Cake
Objective: Beat all six Portal advanced maps.
Objective: Fall 30,000 feet.
Objective: Detach security cameras from the walls.
Objective: Earn silver medals on all Portal challenges.
Objective: Earn bronze medals on all Portal challenges.
Objective: Earn gold medals on all Portal challenges.