Doom 3

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Secret PDA

In Primary Excavation(right before you fight the Cyberdemon), stick to the left wall so that you don’t trigger the cutscene. You will see a brick wall that has the id Software logo on it. Click on the logo using your mouse, and the brick should move back. The wall on your left will open, giving you access to a PDA containing thank you e-mails from the staff.


Skip checkpoints:
Hold L and press B, A, X, Y during game play to advance to the next
checkpoint. A sound will confirm correct code entry.

Invincibility:
Hold L and press X, Y, B, A during game play. A sound will confirm
correct code entry.

Doom Ultimate and Doom 2 Cheats: (Collector’s Edition only)

Toggle God and Degreelessness mode:
Hold L and press A(4).

All weapons, ammunition, and armor:
Hold L and press B(4).

All weapons, health, keys, and armor:
Hold L and press A, B, A, B.

Temporary invincibility:
Hold L and press X(4).

Full map:
Hold L and press Y(4).

Berserk mode:
Hold L and press X(3), Y.

End level:
Hold L and press A(2), B(2).

Chainsaw:
Hold L and press B(2), A(2).

Invisibility:
Hold L and press X(2), Y(2).

Light Amplification Goggles:
Hold L and press Y(3), X.

Radiation Suit:
Hold L and press X, Y(3).

Walk through walls:
Hold L and press A, B, Y, X.