Goldeneye is probably one of the most famous games ever for Nintendo with any system that they have come out with. It has been the leader in first person shooters since it's debute back in 97, when it was the most sold n64 game. If you are new to the game, there are NO codes or cheats that can be typed in, you either have to have game shark or beat lvls on certain difficulty's and under a certain time. Here are the lvls, difficulty lvls and time inwhich you must beat the lvl in order to get the cheat.

Level	Diff.	Time	Cheat
Lvl 1-dam	Secret Agent	2:40	Paint Ball
Lvl 2-Facility	00 Agent	2:05	Invinsibility
Lvl 3-Runway	Agent	5:00	DK Mode
Lvl 4-Surface	Secret Agent	3:30	2x grenade launcher
Lvl 5-Bunker	00 Agent	4:00	2x rocket Launcher
Lvl 6-Silo	Agent	3:00	Turbo Mode
Lvl 7-Frigate	Secret Agent	4:30	No radar (Multi)
Lvl 8-Surface 2	00 Agent	4:15	Tiny Bond
Lvl 9-Bunker 2	Agent	1:30	2 throwing knifes
Lvl 10-Statues	Secret Agent	3:15	Fast Animation
Lvl 11-Archives	00 Agent	1:20	Invisibility
Lvl 12-Streets	Agent	1:45	Enemy Rockets
Lvl 13-Depot	Secret Agent	1:40	Slow Animation
Lvl 14-Train	00 Agent	5:25	Silver PP7
Lvl 15-Jungel	Agent	3:45	2x Hunting Knifes
Lvl 16-Control	Secret Agent	10:00	Infinite Ammo
Lvl 17-Caverns	00 Agent	9:30	2x RC-P90's
Lvl 18-Craddle	Agent	2:15	Gold PP7
Lvl 19-Aztec	Secret Agent	9:00	2x Lazers
Lvl 20-Egyptian	00 Agent	6:00	All guns

There are also a few guns that you can get from just simply beating a lvl for the first time. Weapons you get are............Magnum-Craddle .......... Lazer - Aztec.............Golden Gun-Egyptian

Well these are all of the real cheats in this game.....if you go to my links section then there is a link to a site that has a ton of info on it about Goldeneye.