Half-Life 2 Unlockables
If you need some help in the game to advance then try entering these codes at any time during gameplay to get the desired effect.
Unlock Invincibility:
Press Left Shoulder Up, Right Shoulder Up, Left Shoulder, Left Shoulder, Up, Right Shoulder, Right Shoulder, Up.
Unlock ALL Levels:
Press Left(4), RB, Right(4), LB to be able to choose what level you want to play.
Restore Health:
To spawn a Medpak that will restore 25 points of health press Up(2), Down(2), Left, Right, Left, Right, B, A during gameplay.
Ammunition Refill for Current Weapon:
To spawn an ammunition cartridge for your current weapon press Y, B, A, X, LB, Y, X, A, B, LB during gameplay.
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