Here is the full list of all 51 METAL GEAR SOLID 2: Sons of Liberty - there are Master Collection Version achievements.
Clear the game without entering Alert Mode (not including events where Alert Mode is mandatory)
Earn the title of Big Boss
Send Otacon a picture of the marine with no pants
Get the Plant stealth suit
Get the Tanker stealth suit
Read all the pages in the Screenplay Book
Break the neck of 30 enemies
Watch Rose kill Raiden on a rooftop
Watch something in the Casting Theater
Get the infinity wig
Get the bandana
Clear the game without killing anyone
Catch a glimpse of Vamp standing in the streets of New York during the end cinematic
Hear Johnny's bowel noises in two locations
Collect every type of weapon in the Plant
Beat 30 enemies unconscious
Attain grip level 3
Get sea lice all over your rations
Take a clear photograph of the ghost image in Hold No. 2
Collect every type of weapon on the Tanker
Put an enemy in a locker
Disorient an enemy with a cloud of smoke from a fire extinguisher
Get caught by Otacon stimulating yourself
Complete at least one of the Snake Tales
Down an enemy with steam from a pipe
Complete Boss Survival
Tranquilize 100 enemies
Destroy 5 cameras
Lure a guard with a girlie magazine
Place first in 50 different VR/Alternative missions
Complete a VR or Alternative mission
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
Collect all boxes
Defeat Fatman
Survive Fortune's attack
Shoot an enemy radio
Learn how to defuse C4 bombs from Peter Stillman
Meet Revolver Ocelot
Hold up 30 enemies
Defeat Olga Gurlukovich
Kiss a poster in a locker
Collect a dog tag