Portal cheats:
Activate the following cheats by entering the corresponding sequences of buttons during game play:
CHEAT FUNCTION – CHEAT CODE
Create Box – down, circle, X, circle, triangle, down, circle, X, circle, triangle
Fire Energy Ball – up, triangle(x2), square(x2), X(x2), circle(x2), up
Fire Rocket Projectile – up, triangle(x2), circle(x2), X(x2), square(x2), up
Level Select – left(x4), L1, right(x4), R1
Portal Placement Anywhere – triangle, X, circle, X, circle, triangle(x2), X, left, right
Portalgun ID 0 – up, left, down, right, up, left, down, right, triangle(x2)
Portalgun ID 1 – up, left, down, right, up, left, down, right, square(x2)
Portalgun ID 2 – up, left, down, right, up, left, down, right, X(x2)
Portalgun ID 3 – up, left, down, right, up, left, down, right, circle(x2)
Upgrade Portalgun – square, circle, L1, R1, left, right, L1, R1, L2, R2
ApertureScience.com login:
Go
to aperturescience.com and enter “LOGIN”. Enter “CJOHNSON” as the
username and “TIER3” as the password. After logging in type “HELP” to
display a list of commands. You can also login with any username over
two characters by using “PORTAL” as the password.
ApertureScience.com hidden message:
After logging on to aperturescience.com enter “THECAKEISALIE” to bring up a hidden message.