Here is the full list of all 49 Yakuza 4 trophies - there are 38 bronze, 7 silver, 3 gold and 1 platinum.
Acquire all trophies in the game.
Clear Extra Hard Mode.
Clear Normal Mode without reverting to Easy Mode.
Clear all Ultimate Skill missions.
Collect two of each different tile pattern in mahjong.
Acquire the title "Star of the Coliseum."
Have one of your apprentices win the Rookie Tournament in "Fighter Maker."
Collect ten emblems from survivors during gang encounters.
Receive business cards from all hostesses, including ones you train in "Hostess Maker."
Gather at least one outfit from each category in "Hostess Maker."
Max out all characters to level 20.
Have a hostess wear a present you give her.
Have a hostess invite you on an after-work date.
Obtain the trophy prize in pachinko.
Create one or more weapons for each weapon category.
Possess 10,000,000 yen or more.
Earn 1,000,000 yen playing as Akiyama.
Acquire 10,000 casino points playing as Tanimura.
Sing all songs at karaoke.
Achieve a promotion in shogi.
Achieve a hat trick in darts.
Become a VIP member at the massage parlor.
Pick up 20 pieces of trash around the city.
Order something at least once at each restaurant.
Smash the ball three times in one match.
Collect all Memos in the Pause Menu.
Defeat Amon and get through all the substories.
Purchase five hand guns playing as Saejima.
Knock over 100 people you pass by.
Play all minigames at Club SEGA.
Clear the Finale.
Traverse 100 kilometers or more.
Clear Part 4 of the story.
Complete or finish forty substories.
Destroy 100 weapons you pick up playing as Kiryu.
Clear Part 3 of the story.
Golf and fish five times each.
Play all casino gambling games.
Complete or finish twenty substories.
Clear Part 2 of the story.
Play all non-casino gambling games.
Achieve a turkey in bowling.
Successfully hit two panels at once at the batting center.
Clear Part 1 of the story.
Acquire three Revelations.
Win the first point in Four-Ball pool.
Open five coin lockers.
Complete or finish four substories.
View all Reminiscences from YAKUZA to YAKUZA 3.