Here is the full list of all 55 Yakuza 0 achievements. It takes around 150-200 hours to unlock all of the achievements on Windows.
Obtain all other achievements
Complete the main story on Legend Difficulty
Defeat 3 foes using co-op moves with Oda or Tachibana.
Take more than 15 minutes bringing the takoyaki.
Successfully negotiate ideal terms with Yamagata.
Treat a homeless man to a ¥20,000 bottle of booze.
Complete all Climax Battles.
Complete the Final Chapter.
Get 100% on your Completion List
Obtain all equipment parts.
Complete all substories
Defeat So and Jo Amon.
Complete Chapter 16.
Suffer the full force of Reina's attack.
Complete Chapter 14.
Defeat the yakuza with an afro on the highway.
Complete Chapter 12.
Steal Nikkyo Consortium funds from their safe.
Defeat 30 or more opponents in Endless Rout.
Obtain all abilities for every style.
Max out the level of a platinum hostess
Complete the Cabaret Club Czar storyline.
Get the best weapon search results report.
Complete one training mission with each master.
Play every minigame.
Get over 1,000 fans in any area
Complete Chapter 10.
After you become undisputed king of an area, get someone to light a cigarette for you on the street.
Complete the Real Estate Royale storyline.
Purchase the most expensive property
Win ten bets on three-round tournaments at JCC.
Win all Pocket Circuit races.
Get over 50% on your Completion List
Go on a date with a girl you met at the telephone club.
Get a top-grade item from a Dream Machine
Spend one billion yen
Complete 40 substories
Throw away a total of five million yen.
Get 100% share in any area
Complete Chapter 8.
Get started with Cabaret Club Czar
Watch a sexy video.
Complete Chapter 6.
Throw away money on the street
Get started with Real Estate Royale
Impress Oda with your perfect manners.
Complete Chapter 4.
Complete Chapter 2.
Defeat Mr. Shakedown for the first time.
Complete 10 substories
Purchase ten or more abilities.
Complete every disco song on any difficulty.
Pick up a telephone card.
Get five or more play bonuses fighting a single enemy.
Visit Kamurocho in December 1988.