The following are known GameShark Codes for The Divide: Enemies Within 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.

• Infinite Gatling Gun Ammo
  80129954 005E
• Infinite Grenades
  801299D0 0003
• Have All Power-Ups Maps & Armor
  80127694 FFFF