The following are known GameShark Codes for Geom Cube 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.

• Joker Command
  D0097578 ????
• Pit Texture Map Modifier
  800976E4 00??
• Max Score
  80096F38 ????
• Faces Left To Clear
  8009757C ????
• Puzzle Modifier
  80096F50 00??
  Note: This code works best if you use the Joker Command (Use values 0 – 63).