GoldenEye: Rogue Agent Hints & Cheats

From the main menu go into the extras menu and using either the control stick or the D-pad input the following codes:

Enter this on the main title for all the stages unlocked in Multiplayer.

During the game, pause, and press:

This code only works for single-player gameplay. When playing the game, pause and enter the code. Unpause and the power will have been restored.

During Gameplay, Pause And Enter Code With Shoulder Buttons

Earning tokens unlocks new stuff, here is how to unlock the Artwork in the Extras Menu.

Earning tokens unlocks new Mutiplayer stuff, here is what is required.

Here is how to unlock the power up options in multiplayer.

To find the golden gun you must be in the Hong Kong level after Dr. No's helicopter attacks the building(after you open the sliver case). Kill everyone on that level of the building but DON'T GO THROUGH THE HOLE TO PROCEED ONWARDS. Instead to back to where the sliver case was and look back the way you came. Go to your left and crouch down. You should be able to go through the wall(it's right next to some fire). Go straight through this hallway(still crouched) and you should be able to go through the wall to your left(next to the corner). Then you will be in a room with a cow in a boat. The golden gun is behind the cow.