Load The Game
Load the "Splinter Cell: Chaos Theory" game into the PlayStation 2 console.
Unlock All Levels
Navigate to the main menu and Hold down "L1, " "L2," "R1," "R2" on the PlayStation 2 controller. Keeping the shoulder buttons pressed down, press "Square" five times and then "Circle" five times. If this is entered correctly, all levels should be unlocked.
Elite Mode
Complete the game in its entirety, and you will have unlocked elite mode. Elite mode begins with the knife only and unloaded guns.
Chaos Theory Team Picture
Navigate to the main menu. On the PlayStation 2 controller press: "R2," "Circle," "Circle," "Circle," "Circle," "Circle," "Square." If done correctly, you will have unlocked the Chaos Theory Team Picture.