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