Defeat Olga Gurlukovich

Learn how to defuse C4 bombs from Peter Stillman

Defeat Fatman

Destroy the AV-88 Harrier II

Defeat Vamp

Befriend Olga Gurlukovich

Defeat Solidus Snake

Put an enemy in a locker

Collect a dog tag

Disorient an enemy with a cloud of smoke from a fire extinguisher

Down an enemy with steam from a pipe

Get caught by Otacon stimulating yourself

Send Otacon a picture of the marine with no pants

Hear Johnny's bowel noises in two locations

Watch Rose kill Raiden on a rooftop

Tranquilize 100 enemies

Beat 30 enemies unconscious

Acquire the digital camera

Collect every type of weapon in the Plant

Watch something in the Casting Theater

Complete at least one of the Snake Tales

Place first in 50 different VR/Alternative missions

Get the Tanker stealth suit

Get the Plant stealth suit

Clear the game without entering Alert Mode (not including events where Alert Mode is mandatory)

Read all the pages in the Screenplay Book