Black PS2 Unlockables
By completing the game on the various difficulty settings, you will unlock rewards.
Black Ops Difficulty Setting Complete the game on the Hard difficulty setting.
Levels Complete the game on the Black Ops difficulty setting. The M16A2 can be used on any difficulty setting once unlocked.
Silver Weapons (unlimited ammo)
Complete the game on either the Normal or Hard difficulty setting to unlock them for that difficulty level.
Unlock the BFG Gun
Cheat Code: FG6S-WFZG-7MDP-PZGT
Unlock BFG Gun for City Streets Level
Enter any of the following codes as your profile name. Make sure you include the - symbol when entering the code (it's next to the ! symbol). After entering the code and clicking "Done", you'll be able to enter your real profile name. This is how you know the code was accepted. When you begin the first level, you'll have an M249 machine gun instead of your normal gun.