This is a long code -- 10 steps -- and may take a few tries to enter properly. You can do this code anywhere, but it's best to do it on the Multi-Player Character Select screen while looking at the last available character (Mishkin or
Moonraker Elite). Here's how to do it:

1. Hold the L and R Buttons and press C-Left.
2. Hold the L Button and
3. Hold the L and R Buttons and press Left on the digital Control Pad (NOT the Control Stick). Note: Doing this will select different character on-screen. This is supposed to happen.
4. Hold the L Button and press Right on the Control Pad
5. Hold the R Button and press Down on the Control Pad
6. Hold the L and R Buttons and press C-Left
7. Hold the L Button and press C-Up
8. Hold the L and R Buttons and press Right on the Control Pad
9. Hold the L and R Buttons and press C-Down
10. Hold the L Button and press Down on the Control Pad

If you entered the code correctly, you will be able to select from nearly double the characters you had access to
before. Note that this code will open all of the hidden characters, even if you haven't finished the game. One drawback is that your game will not save this code, so you'll have to re-enter it every time you want to use the extra characters. Note that the Connery, Dalton, Lazenby, or Moore won't be playable -- even with this code. They're simply NOT in the game.