Cheat Codes
     These codes can be entered while in Portal. 
Enter the codes during game play.

Create Box:
[Down], [B], [A], [B], [Y], [Down], [B], [A], [B], [Y]

Fire Energy Ball:
[Up], [Y], [Y], [X], [X], [A], [A], [B], [B], [Up]

Fire Rocket Projectile:
[Up], [Y], [Y], [B], [B], [A], [A], [X], [X], [Up]

Portal Placement Anywhere:
[Y], [A], [B], [A], [B], [Y], [Y], [A], [Left], [Right]

Portalgun ID 0:
[Up], [Left], [Down], [Right], [Up], [Left], [Down], [Right], [Y], [Y]

Portalgun ID 1:
[Up], [Left], [Down], [Right], [Up], [Left], [Down], [Right], [X], [X]

Portalgun ID 2:
[Up], [Left], [Down], [Right], [Up], [Left], [Down], [Right], [A,A]

Portalgun ID 3:
[Up], [Left], [Down], [Right], [Up], [Left], [Down], [Right], [B], [B]

Upgrade Portalgun:
[X], [B], [LB], [RB], [Left], [Right], [LB], [RB], [LT], [RT]



Achievements
     Complete each achievement to get the allotted gamerscore.

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



Unlock gamer picture
     At  the  end of test chamber 17 in the main game, incinerate your 
companion cube to unlock a gamer picture.

Portal Gamer picture:         In test chamber 17, incinetate 
                              the companion cube.