Eat a snake of any type

Achieve a camouflage index of +90%

Get the orange wig

Get the Tanker stealth suit

Destroy 15 cameras

Get the brown wig

Watch Rose kill Raiden on a rooftop

Beat 30 enemies unconscious

Clear the game without entering alert mode (not including events where alert mode is mandatory)

Catch a glimpse of Vamp standing in the streets of New York during the end cinematic

Defeat Metal Gear RAY

Hear Johnny's bowel noises in two locations