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