Half-Life 2 Cheat Codes:To activate the following cheats, enter the corresponding codes during game play:CHEAT FUNCTION – CHEAT CODERestore Health By 25 Points – Up, Up, Down, Down, Left, Right, Left, Right, B, A.Restore ammo for current weapon – Select the weapon you want to restore ammo for and press RB to switch to the gravity gun. Then press Y, B, A, X, RB, Y, X, A, B, RB.Invincibility – LB, Up, RB, Up, LB, LB, Up, RB, RB, Up.Unlock All Levels – Left, Left, Left, Left, LB, Right, Right, Right, Right, RB.AA – Y, Up, Y, Right, Y, Down, Y, Left, Y, Up.Kill – LB, Down, RB, Down, LB(2), Down, RB(2), Down.No Clipping mode – Up(3), LB, Up(3), RB, Up(2).Enemies do not target you – Down(3), LB, Down(3), RB, Down(2).Wireframe cycle – LB(2), RB(2), LB, RB, LB, RB, Left, Right.Portal Cheat Codes:To activate the following cheats, enter the corresponding codes during game play:CHEAT FUNCTION – CHEAT CODECreate box – Down, B, A, B, Y, Down, B, A, B, Y?? ?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), UpPortalgun 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)?? ?Portal placement anywhere: – Y, A, B, A, B, Y(2), A, Left, RightUpgrade Portalgun from Blue to Blue