Here is the full list of all 51 Way of the Samurai 4 trophies - there are 38 bronze, 11 silver, 1 gold and 1 platinum.
Learned all moves associated with the dual arms style.
Successfully completed the final job mission.
Learned all moves associated with the spear style.
Learned all moves associated with the quick-draw style.
Learned all moves associated with the low-ready position.
Learned all moves associated with hand-to-hand combat.
Acquired 100 different weapons.
Watched the "Light of Hope" ending.
Acquired 50 styles, not including My Style.
Changed Sensei's destiny.
Destroyed 10 enemy weapons.
Successfully completed 100 job missions.
Caught a total of 100 fish.
Mastered 100 moves total.
Acquired 9,999 skill points.
Defeated 15 invading duelists.
Finished the game in harakiri mode.
Finished the game in hard mode.
Defeated your character from a previous playthrough.
Won 10 times at gambling.
Mastered the Tokyu fighting style.
Completed 100 combo strikes.
Melted 100 weapons total.
Played through to the ending.
Changed Dojima's destiny.
Survived the torture game.
Defeated a dojo challenger.
Succeeded in a night crawling mission.
Made a night crawling appointment.
Forged an original weapon.
Caught a fish for the first time.
Enlisted a new disciple for the first time.
Strengthened own weapon for the first time.
Successfully completed a job mission for the first time.
Mastered a new move for the first time.
Killed an enemy for the first time.
Acquired all trophies.
Acquired 10,000 samurai points.
Acquired all titles.
Created a new fighting style.
Learned all moves associated with the high-ready position.
Learned all moves associated with the mid-ready position.
Learned all moves associated with the one-handed ready position.
Learned all moves associated with the side ready position.
Learned all moves associated with the shinobi style.
Learned all moves associated with the shinobi dual arms style.
Learned all moves associated with the gun wielding style.
Successfully completed 100 night crawling appointments.
Unlocked all fashion items.
Caught the legendary fish.
Ate all the food from restaurants and food vendors.