Here is the full list of all 45 Yakuza 3 trophies - there are 36 bronze, 5 silver, 3 gold and 1 platinum.
Earn all other trophies in the game.
Play all rounds in Ultimate Skill mode after beating the game.
Complete all minigames.
Beat the game on Extra Hard.
Complete all substories.
Beat the game.
Defeat Mine in Chapter 12.
Accumulate 10,000,000 yen.
Apprehend all hitmen.
Claim victory in all Coliseum tournaments.
Get a hat trick in darts.
Complete 80 substories.
Defeat Fuma in Chapter 10.
Open all the lockers in the top row in both Kamurocho and Downtown Ryukyu.
Get a break ace in Nine-Ball pool.
Make a mod weapon.
Encounter all the masters.
Earn a combined total of 10,000 points in cee-lo, cho-han, koi-koi and oicho-kabu.
Knock over 100 people.
Order the most expensive item(s) in all restaurants.
Earn a combined total of 10,000 points in poker, roulette and blackjack.
Defeat Lau Ka Long in Chapter 8.
Defeat Majima again in Chapter 7.
Initiate 10 battles by using first-person mode.
Complete 50 substories.
Defeat Kanda in Chapter 6.
Hit 2 panels with one ball in the Hard game at the batting cage.
Complete 30 substories.
Complete trophy conditions for the games in the arcade. Get 10 stuffed animals in UFO Catcher, and get a high score in the shooting game.
Run 42.195km.
Defeat man in black suit in Chapter 5.
Break 100 weapons picked up in battles.
Defeat Hasebe in Chapter 4.
Have your first Revelation.
Finish 50 battles with HEAT actions.
Hit a 350 yard drive in Competition Mode in golf.
Complete 10 substories.
Sing all songs at karaoke.
Remove 30 pieces of garbage from Sunshine beach.
Defeat Tamashiro in Chapter 3.
Catch a tuna.
Remove 5 pieces of garbage from Sunshine beach.
Defeat Rikiya in Chapter 2.
Defeat Majima in Chapter 1.
Get a turkey while bowling.