Metal Gear Solid 2: Sons of Liberty HD Edition Cheats

Unlock All Outfits and Missions
Enter the "Missions" subscreen from the menu and you will be prompted to enter a name if this is your first time entering. Enter the following code as your name to unlock every mission and several outfits. Be wary though, you can't use any new character in story mode, only in "Missions" mode.

Unlock All Outfits and Missions: UUDDLRLRBA

Trophies
There are 36 Bronze Trophies, 5 Silver Trophies, 4 Gold Trophies, and 1 Platinum Trophy.

A Cut Above (Gold): Beat the Tanker and Plant chapters on any difficulty
Animal Control (Bronze): Collect a dog tag
Another Snake Bites the Dust (Bronze): Defeat Solidus Snake
Beagle (Bronze): Get the brown wig
Bohemian Candidate (Bronze): Meet President James Johnson
Bomb Squad (Bronze): Learn how to defuse C4 bombs from Peter Stillman
Bye Bye Big Brother (Bronze): Destroy 15 cameras
Complete Stealth (Gold): Clear the game without entering alert mode (not including events where alert mode is mandatory)
Don't Taze Me, Bro (Bronze): Tranquilize 100 enemies
Down in Smoke (Bronze): Disorient an enemy with a cloud of smoke from a fire extinguisher
Great Dane (Gold): Collect all dog tags in the Plant chapter to obtain the Blue Wig
Hurt Locker (Bronze): Put an enemy in a locker
I Think You Need a Hug, E (Bronze): Find Emma Emmerich
In It to Win It (Silver): Place first in 50 different VR/Alternative missions
Johnny on the Spot (Bronze): Hear Johnny's bowel noises in two locations
Kissing Booth (Bronze): Kiss a poster in a locker
Lights Out (Bronze): Defeat Olga Gurlukovich
Love Hurts (Bronze): Watch Rose kill Raiden on a rooftop
Moving Day (Silver): Collect all boxes