Here is the full list of all 51 Samurai Warriors: Spirit of Sanada trophies - there are 38 bronze, 10 silver, 2 gold and 1 platinum.
Talk to the guard of the flourishing Vault.
Visit the castle town of Ōsaka Castle.
Give Sakyō Raifukuji many conch shells.
Increase Yukimura Sanada's Rage intensity to Level 5 in battle.
View the event scene, "Six Coins Pledge."
Give Sakyō Raifukuji several conch shells.
Give Sakyō Raifukuji a conch shell.
Spend a cumulative total of 100,000 Gold.
Use Yukimura Sanada (Youth) in a castle town.
Visit the castle town of Azuchi.
View the event scene, "A Friend's Death."
Achieve an "S" evaluation in battle 10 times.
Talk to the guard of the expanding Vault.
Claim victory in the "Protection of Katsuyori."
Claim victory in the "Battle of Mikatagahara."
Raise your weapon rank to "A".
Use Yukimura Sanada (Child) in a castle town.
Talk to the guard of the run-down Vault.
Invite an officer to join you at the Teahouse.
View the event scene, "Young Men of the Takeda."
Attain a total K.O. count of 10,000.
Raise your Friendship Level with 10 other officers to max.
Acquire materials from the Jizō Statue.
Clear 100% of one exploration goal in one exploration area.
Read 50 entries in the Sanada Clan Chronicles.
Raise your Friendship Level with another officer to max.
Acquire materials at the Farm.
Go fishing.
View the event scene, "Lives to Protect."
Achieve an "S" evaluation in battle.
Achieve 1,000 K.O.s in a single battle.
Acquire a battle accessory in battle or while exploring.
Acquire 10 different materials.
Read the Sanada Clan Chronicles.
Obtain all trophies.
Use Yukimura Sanada (Adult) in a castle town.
Acquire 26 different battle accessories in battle or while exploring.
Read all entries in the Sanada Clan Chronicles.
Raise Yukimura Sanada's level to 50.
Raise the level of any officer to 99.
Attain a total K.O. count of 100,000.
Acquire 100 different materials.
Talk to the guard of the crowded Vault.
Talk to the guard of the land's most famous Vault.
Ride a panda.
Clear 100% of all exploration goals in one exploration area.
View the event scene, "Parting of Ways."
View the event scene, "Masayuki's Fall."
View the event scene, "Cannon Fire."
View the event scene, "The Finest Soldier in the Land."
Use Nobuyuki Sanada (Adult) in a castle town.