Complete each achievement to get the allotted gamerscore.
Unlockable How to Unlock A Feeling Like Floating (5) Dissolve a turret. Cupcake (10) Beat 5 advanced chambers Fruitcake (25) Beat 10 advanced chambers Go for the Gold (15) Win a gold metal on a challenge map. Is Anyone There? (20) Complete the game without ever taking a bullet. Like a Rat (20) Trap yourself in a test chamber so that GLaDOS has to help you continue. Out of the Blue (25) Once you have control of both portals, only enter the orange portal. Rat's Tale (15) Find all the Rat Man dens. Saw That One Coming (5) Cause a rocket sentry to destroy its own rocket when the rocket has been redirected back towards it. Tests Like Chicken (15) Find the chicken's test results. The Camera Adds 10 Pounds (10) Knock a turret over with a security camera. Vanilla Crazy Cake (35) Beat all advanced chambers
Contributed By: Guard Master.
Unlock gamer picture
At the end of test chamber 17 in the main game, incinerate your companion cube to unlock a gamer picture.
Unlockable How to Unlock Portal Gamer picture In test chamber 17, incinetate the companion cube. Portal Gamer picture Defeat GLaDOS and escape
Contributed By: LiamMcluckie.
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