The following are known GameShark Codes for The X-Files on Sony Playstation (PS1).
These codes were also known as Action Replay Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

• Have All Items
  80128D84 FFFF
  80128D86 FFFF
  80128D88 FFFF
  Note: Please note that when using this code, it might mess up events in the game, like certain things you won’t be able to do, etc.