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