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Enter these codes anytime during gameplay.
Effect Code Create box Down, B, A, B, Y, Down, B, A, B, Y Enables invincibility LB, Up, RB, Up, LB, LB, Up, RB, RB, Up Fire energy ball Up, Y(2), X(2), A(2), B(2), Up Fire rocket projectile Up, Y(2), B(2), A(2), X(2), Up Portal placement anywhere: Y, A, B, A, B, Y(2), A, Left, Right Portalgun ID 0 Up, Left, Down, Right, Up, Left, Down, Right, Y(2) Portalgun ID 1 Up, Left, Down, Right, Up, Left, Down, Right, X(2) Portalgun ID 2 Up, Left, Down, Right, Up, Left, Down, Right, A(2) Portalgun ID 3 Up, Left, Down, Right, Up, Left, Down, Right, B(2) Upgrade Portalgun X, B, LB, RB, Left, Right, LB, RB, LT, RT
Hidden Left 4 Dead trailer
To get a trailer for the upcoming Valve game Left 4 Dead, wait at the game select screen (the one where you choose between Portal, Team Fortress, or Halflife 2). After a few minutes You will be taken to a demo video of the three orange box games. Wait for the video to end, then wait again. The next time the video comes up, it will be a Left 4 Dead trailer.
Contributed By: MPHtails.
New Intro Screen
Beat the game
Unlockable How to Unlock Cake Intro Screen Beat Portal once.
Contributed By: Jankers.
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