Indiana Jones And The Emperors Tomb [cheats]

Unpack/overwrite file into your game directory, run game as usual
and you will have access to the builtin cheatmode that provides
among others:

Unlimited Health
Unlimited Oxigen
God Mode
Unlimited Ammo

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Disable AI:
Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "vars.cfg" file in the "lucasartsindiana jones and the emperor's tomb" folder. Locate the "aiDisabled" line and change it to "aiDisabled=false".

Art gallery:
Collect all artifacts in the game to unlock an art gallery.

Play two levels not found in the console version of the game...
If you navigate to the default isntall directory of the game, there is a folder that holds every level of the game. In this folder are two files called Ropetest and Whipgym. Run either of these files to play on a level not present in the console version of the game.

download the file: pz-ijemperorcheats.zip

(to unpack archives use: WinZip,WinAce, WinRar)