| Achievement | How to unlock
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|---|
| A Feeling Like Floating ( 5 points ) | Dissolve a turret.
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| Cupcake ( 10 points ) | Beat 5 advanced chambers.
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| Fruitcake ( 25 points ) | Beat 10 advanced chambers.
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| Go for the Gold ( 15 points ) | Win a gold metal on a challenge map.
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| Is Anyone There? ( 20 points ) | Complete the game without ever taking a bullet.
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| Like a Rat ( 20 points ) | Trap yourself in a test chamber so that GLaDOS has to help you continue.
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| Out of the Blue ( 25 points ) | Once you have control of both portals, only enter the orange portal.
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| Rat's Tale ( 15 points ) | Find all the Rat Man dens.
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| Saw That One Coming ( 5 points ) | Cause a rocket sentry to destroy its own rocket when the rocket has been redirected back towards it.
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| Tests Like Chicken ( 15 points ) | Find the chicken's test results.
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| The Camera Adds 10 Pounds ( 10 points ) | Knock a turret over with a security camera.
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| Vanilla Crazy Cake ( 35 points ) | Beat all advanced chambers.
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| Code | Effect
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|---|
| Down, B, A, B, Y, Down, B, A, B, Y | Create Box
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| Up, Y, Y, X, X, A, A, B, B, Up | Fire Energy Ball
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| Up, Y, Y, B, B, A, A, X, X, Up | Fire Rocket Projectile
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| Y, A, B, A, B, Y, Y, A, Left, Right | Portal Placement Anywhere
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| Up, Left, Down, Right, Up, Left, Down, Right, Y, Y | Portalgun ID 0
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| Up, Left, Down, Right, Up, Left, Down, Right, X, X | Portalgun ID 1
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| Up, Left, Down, Right, Up, Left, Down, Right, A,A | Portalgun ID 2
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| Up, Left, Down, Right, Up, Left, Down, Right, B, B | Portalgun ID 3
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| X, B, LB, RB, Left, Right, LB, RB, LT, RT | Upgrade Portalgun
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