Here is the full list of all 55 Yakuza Kiwami trophies - there are 46 bronze, 6 silver, 2 gold and 1 platinum.
Completed all substories.
Defeated Amon.
Upgraded all Majima Everywhere abilities.
Won against all rivals in MesuKing.
Won all Pocket Circuit races.
Completed "Wife of a Yakuza."
Completed "The Fake Mizuki's Truth."
Assaulted by Majima from above.
Completed 50% of the Completion List.
Completed "Man On a Ledge."
Completed "Bet On A Champ."
Completed "A Doctor's Duty."
Assaulted by Majima from a manhole.
The Mad Dog of Shimano forced his way into a fight.
Breaker Majima forced his way into a fight.
Reached Rank B in Majima Everywhere.
Met Zombie Majima.
Slugger Majima forced his way into a fight.
Completed all training for Komaki Style.
Spent a steamy moment with Yui.
Spent a steamy moment with Rina.
Enjoyed mahjong with a hostess.
Successfully asked a hostess out on a date.
Thug Majima forced his way into a fight.
Met the mysterious lady, Goromi.
Completed "My Baby's a Showgirl."
Won all tournaments in the underground coliseum.
Completed the game in Legend Mode.
Obtained all Soul, Technique, and Body abilities.
Completed the final chapter.
Completed chapter 12.
Completed chapter 11.
Completed chapter 10.
Completed chapter 9.
Completed chapter 8.
Completed 30 substories.
Completed chapter 7.
Completed chapter 6.
Completed 10 substories.
Completed "The Price of an F-Cup."
Obtained at least 10 Soul, Technique, and Body abilities.
Completed chapter 5.
Completed chapter 4.
Met Officer Majima.
Completed chapter 3.
Completed chapter 2.
Got chased by Majima.
Completed chapter 1.
Collected the money owed.
Obtained all trophies.
Completed 100% of the Completion List.
Completed all of the Climax Battles.
Played all minigames.
Walked 1km during Premium Adventure while holding Haruka's hand.
Obtained EX Rank on Haruka's Requests.