Better darts...
	Serena Roof code...
	UFO Finder...
	Unlocking the Black Market...
	Various Trophies...

Complete the indicated task to unlock the corresponding darts. Although the game does not list stats, the better darts give an advantage. For example, if you miss-throw beginner darts, you are likely to greatly miss, but doing so with the highest ranking darts can still allow you to directly hit your target.

Beginner Darts Rank C: Automatically available.
Intermediate Darts Rank B: Complete a match against a medium difficulty darts opponent in Club SEGA Theater Square in Kamurocho.
Expert Darts Rank A: Complete a match against a hard difficulty darts opponent in Club SEGA Theater Square in Kamurocho.
Paul Lim Special Rank S: Complete Dart Substory #13: Showdown With Paul Lim.

Attainable as soon as you arrive in Kamurocho in chapter 1. Head around to the back of the New Serena building and take the stairs all the way to the roof. At the top after you make your way around towards the other side is an electronic safe asking for code KP56VFA9MX2B7LH to be put in.

Complete the game to unlock the "Premium Adventure" option. Start a Premium Adventure to get a text message from the Kamurocho Newsletter telling you about reports of UFO's. Go to Ebisu Pawn in Kamurocho to purchase a UFO Finder for 10,000 yen. Then, equip it, go to the baseball field in Kamurocho, and climb to the roof to see the first UFO. The second UFO can be found in Onomichi. Climb to the top of the mountain using the stairlift and look over at Onomichi to see it.

Progress through the game until you reach a certain point in Chapter 5 to unlock the Clan Creator mini-game. Then, successfully complete the first 13 missions in Onomichi. Once you have completed 13 out of the 16 missions, talk to the bartender near the Clan Creator mini-game to unlock him as a member of your clan. He will tell you about a man he knows that operates a Black Market. Shortly afterwards, you will get a text message saying the Black Market vendor is ready to meet. The Black Market vendor icons will now appear on your maps. The Kamurocho Black Market is in the Hotel District area, and the Onomichi Black Market is within the Hana-no-kubo area. The Black Market allows you to purchase rare and valuable equipment.

Complete the following tasks to unlock PlayStation 4 trophy rewards.

Trophy	How to unlock	Type
A Dead End (secret)	Completed Chapter 6.	Bronze
A Dragon's Experience	Obtained 100,000 total experience points.	Silver
A Fighter's Experience	Obtained 10,000 total experience points.	Bronze
A Man's Experience	Obtained 1,000 total experience points.	Bronze
Amon Defeated	Defeated Amon on any difficulty.	Silver
Can of Whoop Ass	Engaged enemies while a drink's effect is active.	Bronze
Club Shine Star	Requested every hostess.	Bronze
Commemorative Photo	Took a photo of Ono Michio-kun.	Bronze
Cycle of Blood (secret)	Completed Chapter 12.	Bronze
Dandling Dragon	Experienced the trials of raising a baby.	Bronze
Dragon of DoGYMa	Experienced every RIZAP training.	Bronze
Dragon of Legend	Completed the game on LEGEND difficulty.	Gold
Feeling the Heat	Activated Extreme Heat Mode 10 times.	Bronze
Get Out and Stay Out!	Made a store employee angry at you.	Bronze
Heat of the Dragon	Raised the Heat Gauge to a natural 150.	Bronze
Her Secret Life (secret)	Completed Chapter 4.	Bronze
Hero of the Story	Completed 40 substories.	Bronze
Hiroshiman Shadows (secret)	Completed Chapter 2.	Bronze
How Fortuitous	Pulled "Great Blessing" at the temple.	Bronze
I'll Have the Calamari	Defeated the Emperor Squid.	Bronze
Just Getting Started	Completed 10 items on the Completion List.	Bronze
Kiryu Clan Captain	Reached level 3 in the Kiryu Clan.	Bronze
Kiryu Clan Enforcer	Maxed out a Kiryu Clan leader's stats.	Bronze
Kiryu Clan Founder	Assembled the Kiryu Clan.	Bronze
Kiryu Clan Patriarch	Completed the Clan Creator storyline.	Silver
Life of the Dragon	Raised Health to a natural 150.	Bronze
Life Through Kiryu's Eyes	Walked 30 seconds in first-person mode.	Bronze
Limit Breaker	Raised all stats to a natural 200.	Bronze
Live to Fight Another Day	Ran away from 10 encounters successfully.	Bronze
Maybe You Can Do It	Completed 31 items on the Completion List.	Bronze
No Photos!	Got surrounded by enemies while trying to take a picture.	Bronze
Not the Brightest Idea	Jumped from a dangerously high place.	Bronze
Off the Beaten Path	Found a secret passage.	Bronze
On the Winning Team	Achieved 100 victories with the Kiryu Clan.	Bronze
Peak Kiryu	Raised all stats to a natural 300.	Silver
Play Ball!	Won a baseball game.	Bronze
Pretty Tasty	Activated five types of eatery combos.	Bronze
Priceless Child (secret)	Completed Chapter 8.	Bronze
Skill Dabbler	Obtained 10 skills.	Bronze
Skill Master	Obtained all skills.	Silver
Skill Pro	Obtained 25 skills.	Bronze
Speed of the Dragon	Raised Evade to a natural 150.	Bronze
Story of My Life	Completed all substories.	Bronze
Strength of the Dragon	Raised Attack to a natural 150.	Bronze
Tell Me a Story	Completed 10 substories.	Bronze
Thank You. (secret)	Completed all of the main story.	Silver
That's Purrecious	Rescued three stray cats.	Bronze
The Internet's Real Purpose	Chatted with both lovely Live Chat ladies.	Bronze
The Secret of Onomichi (secret)	Completed Chapter 10.	Bronze
The Song of Life	Obtained all other trophies.	Platinum
This Is My City	Completed 20 types of Trouble Missions.	Bronze
To Be This Good Takes AGES	Played every Club SEGA game.	Bronze
Troubleshooter	Completed 5 types of Trouble Missions.	Bronze
Vitality of the Dragon	Raised Defense to a natural 150.	Bronze
Welcome Back (secret)	Arrived in Kamurocho for the first time.	Bronze
What a Player	Played every minigame.	Bronze
Where Everybody Knows Your Name	Reached Beloved Customer rank at Snack New Gaudi.	Bronze
Word on the Streets	Raised the Kiryu Clan's influence to 10,000.	Bronze
You Did It	Completed 100 items on the Completion List.	Silver