CheatCodes.com has all the official Alien Resurrection PSX cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Monday May 20, 2013 for Alien Resurrection are shown below.
At the main menu, press Circle, Left, Right, Circle, Up, R2. A "Cheat" selection will appear on the options screen, allowing God mode, all weapons, infinite ammunition, infinite oxygen, no chestbursting, and level selection.
At the main menu, press Square, Up, Down, Circle, Left, R1. A "Research Mode" selection will appear on the options screen.
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