| icon | info | score |
|---|---|---|
| The Camera Adds 10 Pounds Knock a turret over with a security camera. unlocked Oct 23rd, 2008 1:00 am | 10 | |
| Like a Rat Trap yourself in a test chamber so that GLaDOS has to help you continue. unlocked May 3rd, 2009 8:05 pm | 20 | |
| Fruitcake Beat 10 advanced chambers unlocked May 3rd, 2009 8:30 pm | 25 | |
| Go for the Gold Win a gold medal on a challenge map. unlocked May 3rd, 2009 7:58 pm | 15 | |
| Cupcake Beat 5 advanced chambers unlocked Nov 30th, 2008 10:38 pm | 10 | |
| A Feeling Like Floating Dissolve a turret. unlocked Oct 23rd, 2008 1:07 am | 5 | |
| Out of the Blue Once you have control of both portals, only enter the orange portal. unlocked Dec 2nd, 2010 1:49 pm | 25 | |
| Vanilla Crazy Cake Beat all advanced chambers unlocked May 10th, 2009 9:46 pm | 35 | |
| Rat's Tale Find all the Rat Man dens. unlocked May 3rd, 2009 10:06 pm | 15 | |
| Is Anyone There? Complete the game without ever taking a bullet. unlocked Oct 23rd, 2008 2:23 am | 20 | |
| Saw That One Coming Cause a rocket sentry to destroy its own rocket when the rocket has been redirected back towards it. unlocked Oct 23rd, 2008 2:07 am | 5 | |
| Tests Like Chicken Find the chicken's test results. unlocked Oct 23rd, 2008 1:44 am | 15 |
