Here is the full list of all 50 Metal Gear Solid: Peace Walker HD Edition trophies - there are 39 bronze, 8 silver, 2 gold and 1 platinum.
Obtained every trophy.
Reached 100 kills.
Assembled all special staff members.
Threw a chaff grenade at ZEKE (single player only).
Customized ZEKE's head parts and foot parts with special AI weapon parts.
Reached 50 or more game overs.
Collected a soldier using a divine wind.
Obtained Rank S on a date with Kaz.
Obtained every costume.
Cleared all MAIN OPS and EXTRA OPS missions at Rank S.
Cleared all EXTRA OPS missions at Rank S.
Cleared all EXTRA OPS missions at Rank A or higher.
Cleared all EXTRA OPS missions.
Cleared all MAIN OPS missions at Rank S.
Cleared "Capture the Enemy Base 06" in OUTER OPS using only soldiers.
Obtained Rank S on a date with Paz.
Read Huey's love letter.
Read all of Paz's diary.
Read all of Strangelove's memoirs.
Reached a total of 20,000 or more Camaraderie.
Defeated all AI weapons.
Cleared all hunting quests.
Acquired stealth camouflage. Never worry about being detected ever again.
Played using all of the rules in VERSUS OPS.
Heard a ghost on the radio.
Acquired Infinity Bandana. Never worry about running out of bullets ever again.
Attacked enemy soldiers by blowing up an oil drum or truck (single player only).
Rolled 100 times or more in a single mission.
Cleared all MAIN OPS missions at Rank A or higher.
Cleared Chapter 5: Outer Heaven.
Sent an item using Delivery.
Carried out a trade.
Complete Metal Gear ZEKE.
Reached 300 Fulton recoveries.
Nicely cooked a ration.
Cleared Chapter 4: The Illusion of Peace.
Defeated Pupa, Chrysalis, Cocoon, Peace Walker.
Reached at least 100 stun attacks or sleep-inducing attacks.
Cleared Chapter 3: A Nation Reborn.
Performed a Leap of Faith.
Cleared Chapter 2: The Phantom Hero.
Reached 100 hold-ups.
Performed CQC six times in a row.
Carried out a mission in OUTER OPS.
Cleared Chapter 1: A Country Without An Army.
Recruited Hideo Kojima.
Shot enemy right in the middle of the rear end.
Cleared Prologue: An Army Without Borders.
Captured a mech.
Wearing a cardboard box gives you that feeling of inner peace.