I just recently found out about the cheat codes for this game, and the sites I've viewed have three listed:
Does Goldeneye Wii have any other cheat codes?
I think there has only these!
There's also this mysterious code on the St. Petersburg level. In the archives there is a computer screen behind some bookcases with the code below, but it seems to have no effect when entered as a cheat -- so what does it mean? No one know!