Entry Location:
In game (no pause)
The codes to HL2 also work in ep 1 and 2. You just have to disable the gravity gun control on the right shoulder button to do this (leave it blank on the button assigner at the controls option). This is for the 360 version of the game.
Submitted By: An HL2 Fan
Up, Up, Down, Down, Left, Right, Left, Right, B, A
Left Shoulder, Up, Right Shoulder, Up, Left Shoulder, Left Shoulder, Up, Right Shoulder, Right Shoulder, Up
Y, B, A, X, RB, Y, X, A, B, RB
Down, B, A, B, Y, Down, B, A, B, Y - Create box
Up, Y, Y, X, X, A, A, B, B, Up - Fire energy ball
Up, Y, Y, B, B, A, A, X, X, Up - Fire rocket projectile
Y, A, B, A, B, Y, Y, A, Left, Right - Portal placement anywhere:
Up, Left, Down, Right, Up, Left, Down, Right, Y, Y - Portalgun ID 0
Up, Left, Down, Right, Up, Left, Down, Right, X, X - Portalgun ID 1
Up, Left, Down, Right, Up, Left, Down, Right, A, A - Portalgun ID 2
Up, Left, Down, Right, Up, Left, Down, Right, B, B - Portalgun ID 3
X, B, LB, RB, Left, Right, LB, RB, LT, RT - Upgrade Portalgun