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