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.
Complete all stages of Oni Spirits.
Complete the game in less than 3 hours.
Collect all Fluorite.
Cut down bamboo in the bamboo forest.
Complete the game on Normal without using herbs or medicine.
Complete the game on Normal without enhancing swords or using Jewels.
Collect all maps.
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.
Use Magic Jewels to increase Magic Power to maximum.
Use Power Jewels to increase Vitality to maximum.
Defeat a demon by knocking it down the waterfall.
Unlock Samanosuke's alternate outfit.
Defeat Fortinbras.
Obtain the Bishamon Sword.
Defeat Marcellus's final form.
Strike Marcellus's final form with a Deflect Critical attack.
Open the gate to the Demon World.
Enhance the gauntlet to maximum.
Complete the second half of the Dark Realm.
Win a power struggle with a demon.
Complete the first half of the Dark Realm.
Defeat Hecuba.
Solve all number puzzles.
Obtain all armor for Samanosuke.
Solve all decoder boxes.
Use the Decorated Sword to enter the East Area.
Obtain all long-range weapons.
Defeat Barabazuu.
Kill a demon with a battering ram.
Enhance all orbs to maximum.
Enhance all swords to maximum.
Obtain the Vision Staff.
Defeat Stylado.
Obtain the Sacred Knife.
Speak to the first and second old moth man.
Obtain the Rosary of Communication.
Unseal the path to the Keep Underground.
Obtain the Arashi.
Defeat Marcellus.
Solve the crest puzzle.
Enter the abandoned keep.
Obtain the Kouen.
Defeat Osric.
Save a soldier under attack by demons.
Enhance equipment at Magic Mirror.
Obtain the Shiden.
Use a Special Attack to kill a demon.
Use the gauntlet to absorb demon souls.