Perfect Dark had mode that was called Perfect Head.In this mode, you could import faces made via the Game Boy Camera and apply them to the in-game models to shoot your friends or other people. This mode was removed from the game as a response to the Columbine massacre, but some dialogs can still be viewed by using the Gameshark code 8009EDF8 00??, where ?? is a number between 00 and 10. As well, there's some leftover text in the ROM:
Rom Wrote:Are you sure?
Cancel
End Game
PerfectHead
Load A Saved Head
Make A New Head
Edit A Loaded Head
Edit A PerfectHead
Choose slot to edit:
Cancel
Make A New Head
Load A Saved Head
Where do you want to be able
to use this head?
Combat Simulator
All Missions
Both
Cancel
Camera Setup
Insert your camera into your
Game Boy Pak.
Then, insert your Game Boy Pak
into any controller.
OK
Cancel
Error Game Boy Camera Not Detected!
Please check all connections
and try again.
Cancel
Choose Camera
More than one camera detected.
Please select which camera you
want to use
http://www.ign.com/articles/2000/02/03/p...ce-mapping