Here is the full list of all 34 Metal Gear Solid 4 trophies - there are 19 bronze, 9 silver, 5 gold and 1 platinum.
Obtained all trophies.
Obtained all iPod® tracks (excluding tracks obtained via password).
Piloted Metal Gear REX and screamed at your enemy.
Obtained all weapons (excluding weapons obtained via password).
Ended ALERT status while wearing the Corpse Camo.
Caused a "divine wind" using the Tanegashima.
Viewed all flashbacks.
Viewed all model posters.
Controlled an enemy soldier's emotions using an Emotive Magazine.
Killed many enemies in one area, and vomited.
Took control of an enemy soldier's body using the Mantis Doll or Sorrow Doll.
Broke off the most important part of a statue.
Obtained the Stealth Camouflage.
Obtained the Bandana.
Obtained the Solar Gun.
Cleared Act 5 (Outer Haven).
Got kissed by Ocelot during the final battle.
Defeated Screaming Mantis by non-lethal means, and obtained the Screaming Mantis Doll.
Cleared Act 4 (Shadow Moses).
Obtained 10 or more types of FaceCamo (excluding types obtained via password).
Defeated Crying Wolf by non-lethal means, and obtained the Crying Wolf Doll.
Snapped at least 5 shots of ghosts on Shadow Moses Island.
Used overhead view on Shadow Moses Island.
Cleared Act 3 (Eastern Europe).
Defeated Raging Raven by non-lethal means, and obtained the Raging Raven Doll.
Cleared Act 2 (South America).
Found a crop circle and heard a mysterious voice.
Played Oishii Two-han Seikatsu and made one of the BB Corps dance.
Defeated Laughing Octopus by non-lethal means, and obtained the Laughing Octopus Doll.
Cleared Act 1 (Middle East).
Escaped the Haven Troopers in the Middle East by non-lethal means, and obtained the Frog Soldier Doll.
Knocked an enemy soldier flying using a Drum Can.
Shocked an enemy soldier using Mk. II/III.
Held an enemy soldier at gunpoint and performed a body check.