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A Feeling Like Floating
5
Dissolve a turret.
The Camera Adds 10 Pounds
10
Knock a turret over with a security camera.
Saw That One Coming
5
Cause a rocket sentry to destroy its own rocket when the rocket has been redirected back towards it.
Cupcake
10
Beat 5 advanced chambers
Go for the Gold
15
Win a gold metal on a challenge map.
Tests Like Chicken
15
Find the chicken's test results.
Like a Rat
20
Trap yourself in a test chamber so that GLaDOS has to help you continue.
Fruitcake
25
Beat 10 advanced chambers
Vanilla Crazy Cake
35
Beat all advanced chambers
Rat's Tale
15
Find all the Rat Man dens.
Out of the Blue
25
Once you have control of both portals, only enter the orange portal.
Is Anyone There?
20
Complete the game without ever taking a bullet.
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