Complete guide to unlocking all 40 achievements and earning 1000 Gamerscore in One Piece: Pirate Warriors 4. Learn how to achieve S Ranks, collect items, and master character skills.
The game features 40 achievements totaling 1000 Gamerscore. Below is a list of all achievements and how to unlock them.
| Achievement | How to Unlock | Gamerscore |
| The Fifth Emperor of the Sea | Unlock all achievements | 125 |
| Supernova | Achieve Battle Grade S in any episode | 10 |
| A Great and Priceless Treasure | Unlock at least 25% of the Gallery | 10 |
| The Tree of Knowledge | Unlock at least 75% of the Gallery | 85 |
| Rich Pirates | Collect 100 million or more berries in total | 30 |
| Bounty Hunter | Collect 50 types of coin or more | 30 |
| I Want Ten People | Unlock 10 or more playable characters | 10 |
| Grand Fleet | Unlock 30 or more playable characters | 30 |
| Friends | MAX out one character's Crew Level | 10 |
| Family | MAX out 20 or more characters’ Crew Levels | 30 |
| Fantastic Hardship | Acquired 1 or more skills | 10 |
| Asura’s Path | Acquired 20 or more skills | 30 |
| Push On Through! | MAX out one of your skill levels | 10 |
| Pirate Ranking | MAX out one character's Action Growth Level | 30 |
| A King’s Qualities | MAX out all of one character's special moves | 30 |
| One Step Towards The Dream | Acquire all the islands from "The Beginning Map" | 30 |
| Heedless Rush | Win a battle with a Power type character for the first time | 10 |
| Lightning Speed | Win a battle with a Speed type character for the first time | 10 |
| Sophistication | Win a battle with a Technique type character for the first time | 10 |
| Harsh Winds and Strong Waves | Win a battle with a Sky type character for the first time | 10 |
| I'm Getting Fired Up...! | Use a special skill for the first time | 10 |
| Willing to Die For the Cause | Defeat your first enemy using Full-Force Burst | 10 |
| Gear Four | Defeat your first enemy while in Form Change | 10 |
| Sky Walk | Stay airborne for at least 10 seconds | 10 |
| Certifiably Powerful Enemy | Use a special skill at least 10 times in one battle | 10 |
| One in a Thousand | Defeat 1000 or more enemies in a single battle | 10 |
| Cola Energy | Use Power Dash 1000 times or more in total | 30 |
| The Power to Destroy the World | Topple 10,000 enemies in total during a Full-Force Burst | 30 |
| The Strongest Creature | Topple a total of 100,000 foes | 30 |
| The King of Destruction | Destroy a total of 1000 Stage Objects | 30 |
Secret Achievements:
| Achievement | How to Unlock | Gamerscore |
| Two of the Four Emperors stand in the way | Clear Dramatic Log “Introduction” | 10 |
| My Friends’ Seal | Clear Dramatic Log “Introduction” | 10 |
| Declaration of War | Clear Dramatic Log “Enies Lobby Arc” | 10 |
| The Times are Changing | Clear Dramatic Log “Summit War Arc” | 10 |
| Followers' Sake Cups | Clear Dramatic Log “Entry to the New World Arc” | 10 |
| Onward to Wano! | Clear Dramatic Log “Whole Cake Island Arc” | 10 |
| A New Dawn | Clear Dramatic Log “Land of Wano Arc (Game Original)” | 85 |
| Adventures at Daybreak | Clear at least 1 “East Blue” battle from the Treasure Log | 10 |
| Level G.L | Be promoted to Treasure Log “Grand Line” | 30 |
| The Name of that Sea is... | Clear the Deciding Battle Episode from the Treasure Log “New World” | 85 |
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