Here is the full list of all 46 Metal Gear Solid 2 trophies - there are 36 bronze, 5 silver, 4 gold and 1 platinum.
Collect all trophies
Collect all dog tags in the Plant chapter to obtain the Blue Wig
Kill 5 enemies with pipe steam
Get the orange wig
Get the Plant stealth suit
Hear Johnny's bowel noises in two locations
Get the brown wig
Destroy 15 cameras
Catch a glimpse of Vamp standing in the streets of New York during the end cinematic
Collect all boxes
Complete all VR and Alternative missions
Lure a guard with a girlie magazine
Get the Tanker stealth suit
Get caught by Otacon stimulating yourself
Complete all Snake Tales
Break the neck of 30 enemies
Tranquilize 100 enemies
Beat 30 enemies unconscious
Complete Boss Survival
Get the bandana
Send Otacon a picture of the marine with no pants
Disorient an enemy with a cloud of smoke from a fire extinguisher
Kiss a poster in a locker
Watch Rose kill Raiden on a rooftop
Clear the game without entering alert mode (not including events where alert mode is mandatory)
Beat the Tanker and Plant chapters on any difficulty
Defeat Solidus Snake
Defeat Metal Gear RAY
Befriend Olga Gurlukovich
Acquire the digital camera
Find Emma Emmerich
Defeat Vamp
Meet President James Johnson
Destroy the AV-88 Harrier II
Learn the location of the president
Defeat Fatman
Learn how to defuse C4 bombs from Peter Stillman
Meet Revolver
Take a clear photograph of the ghost image in Hold No. 2
Attain grip level 3
Defeat Olga Gurlukovich
Collect a dog tag
Shoot 10 enemy radios
Place first in 50 different VR/Alternative missions
Put an enemy in a locker
Complete a VR or Alternative mission