Fruitcake
Beat 10 advanced chambers
25 ✓ April 26th, 2013
Go for the Gold
Win a gold medal on a challenge map.
15 ✓ April 26th, 2013
Cupcake
Beat 5 advanced chambers
10 ✓ April 26th, 2013
The Camera Adds 10 Pounds
Knock a turret over with a security camera.
10 ✓ April 28th, 2013
A Feeling Like Floating
Dissolve a turret.
5 ✓ April 26th, 2013
Vanilla Crazy Cake
Beat all advanced chambers
35 
Out of the Blue
Once you have control of both portals, only enter the orange portal.
25 
Is Anyone There?
Complete the game without ever taking a bullet.
20 
Like a Rat
Trap yourself in a test chamber so that GLaDOS has to help you continue.
20 
Rat's Tale
Find all the Rat Man dens.
15 
Tests Like Chicken
Find the chicken's test results.
15 
Saw That One Coming
Cause a rocket sentry to destroy its own rocket when the rocket has been redirected back towards it.
5