Uncharted: Drake's Fortune Codes -

Cheat Mode
Enter the following codes:

, , , , , , , - Unlock Drake's baseball T-shirt (enter the code at costume select screen)
, , , , , , , - Unlock "Concept Art - Bonus 1" video
, , , , , , , - Unlock "Concept Art - Bonus 2"
, , , , , , , - Unlock "Making a Cutscene - Grave Robbing" Video
, , , , , , , - Unlock "Making a Cutscene - Time's Up" video
, , , , , - God mode
, , , , , - Unlock All weapons
, , , , , - Unlimited Ammo

Unlock Trophies
10 Headshots (Bronze Trophy) - Kill 10 enemies with headshots
100 Headshots (Silver Trophy) - Kill 100 enemies with headshots
20 Kills: Desert - 5 (Bronze Trophy) - Kill 20 enemies with the Desert - 5
20 Kills: Mk-NDI (Bronze Trophy) - Kill 20 enemies with Mk-NDI grenades
20 Kills: Wes - 44 (Bronze Trophy) - Kill 20 enemies with the Wes - 44
30 Headshots (Bronze Trophy) - Kill 30 enemies with headshots
30 Kills: Dragon Sniper (Bronze Trophy) - Kill 30 enemies with the Dragon Sniper
30 Kills: M79 (Bronze Trophy) - Kill 30 enemies with the M79
30 Kills: MP40 (Bronze Trophy) - Kill 30 enemies with the MP40
50 Kills: 92FS - 9mm (Bronze Trophy) - Kill 50 enemies with the 92FS - 9mm
50 Kills: AK-47 (Bronze Trophy) - Kill 50 enemies with the AK-47
50 Kills: M4 (Bronze Trophy) - Kill 50 enemies with the M4
50 Kills: Micro - 9mm (Bronze Trophy) - Kill 50 enemies with the Micro - 9mm
50 Kills: Moss - 12 (Bronze Trophy) - Kill 50 enemies with the Moss - 12
50 Kills: PM - 9mm (Bronze Trophy) - Kill 50 enemies with the PM - 9mm
50 Kills: SAS - 12 (Bronze Trophy) - Kill 50 enemies with the SAS - 12
Advanced Fortune Hunter (Bronze Trophy) - Find 35 treasures
Beginner Fortune Hunter (Bronze Trophy) - Find five treasures
Brutal Brawler (Bronze Trophy) - Kill five enemies with a brutal combo
Brutal Expert (Silver Trophy) - Kill five enemies in a row with a brutal combo
Brutal Slugger (Silver Trophy) - Kill 20 enemies with a brutal combo
Charted! - Crushing (Gold Trophy) - Finish the game in Crushing Mode
Charted! - Easy (Bronze Trophy) - Finish the game in Easy Mode
Charted! - Hard (Gold Trophy) - Finish the game in Hard Mode
Charted! - Normal (Silver Trophy) - Finish the game in Normal Mode
Crack Fortune Hunter (Bronze Trophy) - Find 55 treasures
Dyno-Might! (Bronze Trophy) - Kill three enemies with one explosion
Enthusiast Fortune Hunter (Bronze Trophy) - Find 15 treasures
Expert Dyno-Might (Silver Trophy) - Kill three enemies with one explosion five times
Expert Fortune Hunter (Bronze Trophy) - Find 50 treasures
First Treasure (Bronze Trophy) - Find one treasure
Grenade Hangman (Bronze Trophy) - Kill 10 enemies with grenades by aiming while hanging from a ledge
Hangman (Bronze Trophy) - Kill 10 enemies by aiming while hanging from a ledge
Headshot Expert (Bronze Trophy) - Kill five enemies in a row with headshots
Intermediate Fortune Hunter (Bronze Trophy) - Find 20 treasures
Master Fortune Hunter (Silver Trophy) - Find 60 treasures
Novice Fortune Hunter (Bronze Trophy) - Find 10 treasures
Platinum Trophy - The platinum trophy is awarded when you have collected all 47 trophies
Professional Fortune Hunter (Bronze Trophy) - Find 40 treasures
Proficient Fortune Hunter (Bronze Trophy) - Find 30 treasures
Relic Finder (Bronze Trophy) - Find the Strange Relic
Run-and-Gunner (Bronze Trophy) - Kill 20 enemies by shooting from the hip (without aiming with the button)
Senior Fortune Hunter (Bronze Trophy) - Find 45 treasures
Skilled Fortune Hunter (Bronze Trophy) - Find 25 treasures
Stealth Attacker (Silver Trophy) - Kill 20 enemies melee-attacking from behind
Steel Fist (Bronze Trophy) - Kill five enemies with a single punch, after softening them up with gunfire
Steel Fist Expert (Silver Trophy) - Kill five enemies in a row with a single punch, after softening them up with gunfire
Survivor (Silver Trophy) - Kill 50 enemies in a row without dying

Unlock "Crushing" Difficulty
Complete 22 chapters on "Hard" difficulty. Then start a "New Game" and you'll see "Crushing" mode - the most challenging difficulty level.