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