One Piece World Seeker: Ultimate 100% Walkthrough Guide

Oct 29, 2025 by Jhon Lennon 56 views

Hey there, fellow pirates! Are you ready to dive headfirst into the grand adventure of One Piece World Seeker? This game is a blast, throwing you into the shoes of the one and only Monkey D. Luffy as he explores the vast Jail Island. If you're anything like me, you'll want to experience everything this game has to offer. That's why I've put together this ultimate 100% walkthrough guide to help you conquer every nook and cranny, uncover every secret, and become the ultimate pirate! So, grab your Straw Hat, and let's get started!

Chapter 1: Awakening on Jail Island – Setting Sail

Alright, guys, let's kick things off with the first chapter. Chapter 1: Awakening on Jail Island is your introduction to the world of One Piece World Seeker. This part is all about getting your bearings and learning the ropes. Here's a breakdown to get you through it like a champ:

Story Missions: These are the backbone of the game. Follow the main quest markers on your map, talk to the NPCs with exclamation marks, and get ready for some epic cutscenes. Pay attention to the story, because it's classic One Piece – full of heart, humor, and high-stakes drama. The main objective is to establish contact with the local resistance, led by Jeanne. Be sure to explore the town to get acquainted with the place and the characters involved in the story. During the exploration phase, the objective is to find a way to access the restricted area, where the resistance is located. This requires you to find the secret passages in the city, using Luffy’s Observation Haki ability. The beginning missions mostly require you to use Luffy’s Gum-Gum abilities to travel the map. This involves using his Gum-Gum Rocket to launch himself across gaps, and using Gum-Gum Gatling to defeat enemies. The most important thing here is that you need to familiarize yourself with the basic movement controls, such as running, jumping, climbing and swimming, and also the battle mechanics.
Side Missions: Don't skip these! They're marked with blue icons on your map. Side missions are a fantastic way to level up your character, earn some extra rewards, and get to know the island's inhabitants. They usually involve fetching items, taking down enemies, or solving simple puzzles. It's really beneficial to keep doing side quests in the early game, because it is an easy way to level up your experience and gain new skills. You can also get valuable resources to upgrade your gears. Some of the side missions are only available when you have the required skill. The completion of the first chapter is when you unlock all the basic skills that you need to survive in the game. You'll learn the ropes of combat, exploration, and how to use Luffy's unique Gum-Gum abilities. This is also where you'll start meeting the key players in the story.
Collectibles: Keep your eyes peeled for hidden collectibles scattered throughout the island. These range from treasure chests to hidden items and documents. Collecting everything will contribute to that sweet 100% completion rate, but also gives you a deeper appreciation for the world and story. The important items to collect are the fragments, which are used to upgrade your skills. To find collectibles, you may need to use Luffy's Observation Haki to sense them. Exploration is important in One Piece World Seeker, so don't be afraid to wander off the beaten path! Always be careful of the enemy's presence, as they can attack you anytime. You should know the behavior patterns of your enemies in order to avoid fights. When enemies appear, you can choose to fight or to escape. If you are not confident in your skills, you can always choose to escape, so you can come back later when you have gained enough experience.
Combat: Get used to Luffy's fighting style. Experiment with his various Gum-Gum abilities like Rocket, Gatling, and Pistol. Master the timing of your attacks and learn how to dodge incoming attacks. As the game progresses, you'll unlock more powerful moves, so keep practicing. During the combat, the most important thing is to use the environment to your advantage. You can use the surrounding objects to perform a powerful attack. You can switch between your combat styles to defeat different enemies. Learning the enemies' weakness is also important in combat.

Skills to Prioritize

When you start earning skill points, focus on these early on:

Gum-Gum Rocket: Essential for exploration.
Gum-Gum Pistol: A reliable attack for taking down enemies.
Haki skills: These give you extra protection and awareness.

Chapter 2: The Truth of Jail Island – Unveiling Secrets

Alright, buckle up, because Chapter 2 is where things start to get interesting. The Truth of Jail Island will take you deeper into the mysteries of the island. Here’s a breakdown to help you along the way:

Story Missions: Continue to follow the main quest markers, and get ready for some serious revelations. You'll encounter new characters, face tougher challenges, and uncover some shocking truths about Jail Island. As the story unfolds, you’ll learn about the conflict between the Marines and the resistance, and Luffy will start to take a more active role in the events. Pay extra attention to cutscenes and dialogues, because there is going to be plot twists. The narrative will get increasingly complex and more secrets will be revealed. Some missions will task you with infiltrating enemy bases, rescuing allies, and gathering intelligence. Others may be boss battles with powerful opponents. This will increase the difficulty of the game, so be prepared.
Side Missions: Keep an eye out for more side missions! These are crucial for building up your resources and experience. Look for missions that reward you with rare items or skill points. Keep doing these side missions because they will help you level up faster and become a stronger character. Always check with the NPCs in the city, because they will be the ones that give you side missions. Some of the side missions may involve investigation, puzzles, or combat. This will make you practice your skills and give you the skills required in the main story.
Exploration: The map expands in Chapter 2, so make sure to explore every area thoroughly. Look for hidden passages, secret locations, and valuable resources. Use Luffy's Gum-Gum abilities to access hard-to-reach areas. The exploration in this chapter is going to be more complex than the previous one, and there will be more hidden items and collectibles. Take your time to explore, because there might be some treasures hidden in the area.
Combat: By this point, you'll be facing tougher enemies. Experiment with different attack combinations and learn how to use your environment for cover and advantage. The new enemies that you meet will be much stronger, so you need to be strategic. Try to learn their attack patterns and exploit their weaknesses. Try to change your combat style to get the best results. Focus on dodging attacks and using counters. Try to conserve your health by avoiding damage. Don't forget to use your special moves to get an upper hand in combat.
Boss Battles: Chapter 2 will feature some significant boss battles. Study your opponents' attack patterns and learn how to dodge their attacks. Use your strongest attacks and any special items you have. Boss battles are the toughest part of the chapter, so you should prepare yourself well. The most important thing is to be patient and keep learning from your mistakes. It is common to die a few times before beating the boss, so don't get discouraged!

Skills to Prioritize

Advanced Haki skills: Boost your defense and attack.
Powerful Gum-Gum attacks: Like Gatling and Elephant Gun.
New exploration skills: To reach new areas and collect rare items.

Chapter 3: The Sky Above the Island – Soaring to New Heights

Chapter 3: The Sky Above the Island brings a whole new level of excitement. Get ready to explore the skies and discover even more secrets!

Story Missions: You will be able to experience the new gameplay mechanics, such as flying and gliding. The story will take you to new locations, and you'll encounter even more interesting characters. The main goal in this chapter will be to find a new way to help the resistance forces, while also looking for a mysterious object. The story will involve more strategic and political elements, adding complexity to the storyline. In this chapter, you will encounter more obstacles and challenges that will require you to combine different skills. Also, there will be more boss battles to face, so you need to keep upgrading your skills. This is where you will discover the truth of Jail Island.
Side Missions: Keep completing the side missions, because they give valuable rewards and help you level up your character. The side missions will require you to travel to different locations. Explore the area to find new side missions. Side missions are a great way to learn more about the world and meet new characters. Make sure to accept the side quests given by the NPCs in the city. Also, some side quests will only be unlocked after you have met certain conditions. These quests may involve more challenging tasks, such as defeating enemies, collecting specific items, or completing time-based trials. Make sure you are well-prepared when you start the side missions.
Exploration: Get ready to explore the sky! Use Luffy's Gum-Gum abilities to soar through the air and discover new areas. Look for hidden islands, secret locations, and valuable resources in the sky. To explore the air, you need to use the new abilities that you have unlocked. Explore the areas and use the tools that you have. Keep an eye out for hidden items in the sky. Exploration will be more challenging in this chapter, as you need to navigate in the air and also find the items. Also, some areas require you to find hidden areas. To explore the sky, you will need to familiarize yourself with the controls. Keep practicing, and you will get used to it.
Combat: You'll face a wider variety of enemies in the sky. Use your Gum-Gum abilities to take down enemies in the air. Master the art of aerial combat, and make sure to have the best gear to survive. Utilize the environment and use the special attacks. The enemies in this chapter will be much tougher. You should know how to use all the skills that you have acquired. Keep practicing the combat techniques, and learn how to dodge attacks. Make sure to learn the enemy's attack patterns, and exploit the weakness.

Skills to Prioritize

Aerial combat skills: To fight in the sky.
Advanced Gum-Gum moves: To deal more damage to enemies.
Exploration skills: To discover new areas and items.

Chapter 4 and Beyond: The Pinnacle of Piracy – Becoming the Pirate King

Alright, Chapter 4 and Beyond is where the rubber meets the road! The game's final act will throw everything at you, so be ready. Here's what you need to know:

Story Missions: The main story will reach its climax in Chapter 4, with epic battles, shocking revelations, and a satisfying conclusion. This is the culmination of everything you've worked for. You'll confront the game's final boss and test your skills. The main goal in Chapter 4 is to defeat the final boss and finish the game. The story in this chapter gets intense. You will also experience an unexpected turn in the storyline. The story will make you feel a wide range of emotions. You can expect plot twists and turns along the way. Be prepared for a huge battle. This will involve the use of all skills and items that you have obtained. The final battles will be challenging, so you must prepare yourself well.
Side Missions: Even in the final chapters, side missions will remain valuable. It is a good time to revisit the side missions that you may have skipped. This is also a good chance to explore the parts of the map that you may have missed. The rewards you get from completing the side missions will help you to level up even further. Also, side missions will help you get items that can be useful in the battle.
Exploration: By now, you should have explored every corner of the island. Revisit areas you may have missed and collect any remaining items or secrets. The game will show you all the areas and places that you missed. You can still explore the game after completing the story. You can continue to explore the areas and finish up all of the side missions. Remember to collect all the collectibles and hidden treasures. This will help you to finish the game 100%.
Combat: You'll need to use everything you've learned to survive the final battles. Master all of Luffy's abilities, experiment with different attack combinations, and use any items you have wisely. The final boss battles will test your skills, so be ready. Make sure to use all the skills you have learned. Remember to keep practicing and learning from your mistakes. Also, make sure you have the best gears, because it can give you an advantage.
100% Completion: To achieve 100% completion, you'll need to complete all story missions, side missions, collect all items, discover all locations, and master all skills. This is the ultimate goal for any true pirate! Keep checking your progress on the game, and make sure you do not miss anything.

Skills to Prioritize

Master all Gum-Gum abilities: Use them to defeat enemies.
Max out your Haki skills: Give yourself the best defense and offense.
Collect all the items and resources: Make sure that you have everything you need.

General Tips and Tricks for One Piece World Seeker

Let's go over some general tips to make your journey smoother:

Explore Everywhere: Don't be afraid to wander off the beaten path. You never know what you might find! Explore every corner of the map. Try to discover all the hidden areas. Look for the treasures and items.
Upgrade Frequently: Regularly upgrade Luffy's skills and gear. This will make combat and exploration much easier. Keep leveling up your skills. Make sure that you have the best gears.
Use the Environment: Take advantage of the environment during combat. Use objects for cover and to launch attacks. The environment can be a useful tool during combat.
Experiment with Abilities: Try out all of Luffy's Gum-Gum abilities to find the ones that best suit your playstyle. Experiment with different attack combinations and combat strategies.
Read the Descriptions: Pay attention to item descriptions and tutorials. This will help you understand the game's mechanics and strategies. Read all the instructions and descriptions. Understand the game's mechanics. Don't be afraid to experiment.
Save Regularly: Save your game often to avoid losing progress. Make sure you don't lose all the progress. Save at a suitable spot in the game.
Don't Give Up! The game can be challenging, but keep practicing and you'll get the hang of it. Keep learning from your mistakes and you'll improve. Don't be discouraged!

Conclusion: Become the Pirate King!

That's it, guys! With this guide, you're well on your way to achieving 100% completion in One Piece World Seeker. Follow these tips, explore the world, and most importantly, have fun! Remember, it's about the journey, not just the destination. Embrace the adventure, and become the Pirate King! Arrr!