Here is the full list of all 56 Onimusha: Warlords trophies - there are 48 bronze, 5 silver, 2 gold and 1 platinum.
Collect all trophies.
Unlock Kaede's alternate outfit.
Complete the game and get an S Rank.
Complete the game on Ultimate difficulty.
Collect all files.
Absorb souls from carp.
Strike a demon with Kaede's Special Attack.
Find the beetle on the tree trunk.
Spot the flock of wild geese at dusk.
Complete all stages of Oni Spirits.
Obtain the Bishamon Sword.
Enhance all swords to maximum.
Enhance the gauntlet to maximum.
Complete the second half of the Dark Realm.
Collect all Fluorite.
Complete the first half of the Dark Realm.
Complete the game on Normal without using herbs or medicine.
Use Magic Jewels to increase Magic Power to maximum.
Use Power Jewels to increase Vitality to maximum.
Unlock Samanosuke's alternate outfit.
Complete the game in less than 3 hours.
Complete the game on Normal without enhancing swords or using Jewels.
Defeat Fortinbras.
Collect all maps.
Defeat Marcellus's final form.
Strike Marcellus's final form with a Deflect Critical attack.
Open the gate to the Demon World.
Defeat Hecuba.
Solve all number puzzles.
Solve all decoder boxes.
Obtain all armor for Samanosuke.
Defeat a demon by knocking it down the waterfall.
Use the Decorated Sword to enter the East Area.
Obtain all long-range weapons.
Obtain the Vision Staff.
Defeat Barabazuu.
Kill a demon with a battering ram.
Enhance all orbs to maximum.
Speak to the first and second old moth man.
Defeat Stylado.
Obtain the Sacred Knife.
Cut down bamboo in the bamboo forest.
Obtain the Rosary of Communication.
Unseal the path to the Keep Underground.
Obtain the Arashi.
Defeat Marcellus.
Solve the crest puzzle.
Enhance equipment at Magic Mirror.
Win a power struggle with a demon.
Enter the abandoned keep.
Obtain the Kouen.
Defeat Osric.
Save a soldier under attack by demons.
Obtain the Shiden.
Use the gauntlet to absorb demon souls.
Use a Special Attack to kill a demon.