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