Welcome to our comprehensive Splatoon 2: Octo Expansion Walkthrough, your ultimate guide to mastering this thrilling DLC! Dive deep into the underground world of Octo Expansion and navigate through 80+ testing missions with our expert tips and strategies. Whether you’re just Starting Your Journey or gearing up to tackle formidable challenges, we’ve got you covered. Discover the secrets behind Key Locations and Challenges, and learn how to expertly wield Weapons and Abilities to dominate your foes. Prepare for intense showdowns with our specialized Strategies for Boss Battles and unlock the coveted Post-Game Content to keep the adventure rolling. Ready to become an Octoling legend? Let’s dive in!

Starting Your Journey#

So, you’re ready to dive into Splatoon 2: Octo Expansion, huh? Good choice! This single-player add-on offers some of the coolest challenges in the Splatoon universe. But before you can make your way to Inkopolis Square or impress your friends with your octopus swag, you’ll need to understand the basics. Let’s kick things off and get you on the right path.

Wake Up, Agent 8#

Your adventure begins in a dark, mysterious subway. You play as Agent 8, an octoling who has lost their memory. As you regain consciousness, you’ll meet Cap’n Cuttlefish, a grizzled old sea captain. He’ll serve as your guide through the labyrinth of tests and trials that make up the Octo Expansion.

• Tip: Pay attention to Cuttlefish’s dialogue. He drops hints about what to do next and offers context for the storyline.

The Deepsea Metro#

The Deepsea Metro is your hub. It’s this underground subway system filled with eerie vibes and quirky characters. Central to this Metro is the AI conductor, C.Q. Cumber. He’ll give you tickets (CQ Points) to access different test chambers. These points are crucial, so gather as many as you can.

• Fun Fact: The Metro’s passengers are inspired by deep-sea creatures. They’re weird, wonderful, and add lots of flavor to the setting.

Interacting with NILS Statue#

Soon after exploring the Metro, you’ll encounter a large statue known as the NILS Statue. This peculiar sculpture has a vital role—it’s what you’re ultimately trying to reach. But first, you’ll need to complete a series of test stations.

Earning and Spending CQ Points#

Now, about those CQ Points: you earn them by completing various challenges known as test chambers. Each chamber has an entry fee, and they differ in difficulty. If you run out of points, you’ll need to pony up some of your own precious cash or restart from an earlier save.

• Pro Tip: Don’t hesitate to replay easier stages to rack up more CQ Points. Sometimes, replaying a level you’re good at is the best way to build a healthy stash.

Test Chambers#

Each test chamber is like a mini-game, designed to test your skills in different ways. From basic splatting to more intricate puzzles, you’ll need to use all your abilities to succeed. There are over 80 of these chambers, and each one gets progressively harder.

• Hint: Some test chambers have optional paths and hidden items. Keep an eye out for these to give yourself an edge.

Mem Cakes#

As you complete test chambers, you’ll collect Mem Cakes—small memory fragments that represent pieces of Agent 8’s past. Not just for story buffs, these Mem Cakes can later be traded for exclusive gear that’s only available in the Octo Expansion.

• Heads up: Collecting all the Mem Cakes unlocks special rewards and offers deeper insight into the story.

Gaining Access to New Lines#

The Metro lines (like subway lines) unlock as you progress. Each color-coded line contains a series of test chambers and challenges. Initially, only a few lines will be available, but more will appear as you advance, opening up new areas to explore.

• Note: Connecting different lines can sometimes help bypass difficult stages, offering a strategic shortcut.

Meet the Bosses#

Finally, let’s not forget the bosses. Each major line ends with a boss battle, requiring you to put all your skills to the test. These bosses are tough but fair, and beating them brings you one step closer to your goal.

• Boss Tip: Study their patterns and don’t be afraid to think outside the (ink) box. Sometimes, the unconventional tactic is the one that works.

With these basics down, you should be all set to jump into Splatoon 2: Octo Expansion. Remember, it’s okay to take your time and explore. The Metro has plenty of secrets waiting just for you, Agent 8. Happy splatting!

Key Locations and Challenges in Splatoon 2: Octo Expansion#

So, you’ve decided to dive into Splatoon 2: Octo Expansion? Awesome! You’re in for a wild ride through a series of tricky challenges and memorable spots. Let’s break down the key locations and what you’ll face in each of them.

Central Station (C.Q. Cumber’s Hub)#

Central Station is your hub, the starting point. Here, you’ll meet C.Q. Cumber, your advisor, and get a feel for the layout. This station lets you access the subway system that connects all test facilities. It’s a safe place where you can plan your next move, check your map, and manage your resources.

Line A - Your First Journey#

A01: Fake Plastic Station#

Your first challenge will be at A01: Fake Plastic Station. It’s relatively easy, designed to help you get used to the game mechanics. You’ll need to utilize your Inkjet to navigate and finish the course. Keep moving and don’t overthink it!

A06: Ride with Me Station#

Next up is A06: Ride with Me Station. Here, you’ll ride atop an inkrail. Aim your shots at targets to extend the rail and progress. Timing is crucial; hit those targets to keep moving or you’ll plummet!

Line B - Slightly Trickier#

B01: Maverick Station#

At B01: Maverick Station, you’ll deal with a series of rotating platforms. Master your jumping and inking skills to move forward. Precision is the key to avoiding a dizzying fall!

B03: Cratebuster Station#

B03: Cratebuster Station has you break all the crates within the time limit. It sounds simple, but some crates are hidden in tricky spots. Use your sub-weapons wisely to blast through them all efficiently.

Line C - The Challengers’ Line#

C02: Duh-Oh Station#

C02: Duh-Oh Station is where things get interesting. You have to defeat all enemies before time runs out. Watch your ink levels, and don’t get cornered by Octarians!

C03: Girl Power Station#

Ah, C03: Girl Power Station. This one’s infamous for its difficulty. You’ll protect an orb from waves of enemies. Use every tool at your disposal—specials, bombs, everything. Survival is your primary objective.

Line F - Mind the Gap#

F01: One with the Grinder Station#

In F01: One with the Grinder Station, you’ll grind on rails while avoiding obstacles. Keep your rhythm, and don’t hesitate to jump off if you see danger coming. Staying on your toes is necessary for survival.

F05: Popalicious Station#

For F05: Popalicious Station, your goal is to pop all balloons before they disappear. This is a fast-paced challenge that needs quick reflexes and sharp shooting.

Special Boss Stages#

Inner Agent 3#

Inner Agent 3 is a hidden boss and probably the toughest fight in the expansion. You’ll need to use every trick you’ve learned to defeat this souped-up version of yourself. Dodge-rolls, splat-bombs, and savvy use of cover are minimums here!

Pro Tips for Key Challenges#

• Timing is Everything: Many challenges are on a strict timer. Do a practice run to get the lay of the land before going full throttle.
• Keep an Eye on Ink Levels: Running out of ink in the middle of a fight or while jumping can be disastrous. Refill whenever you get the chance.
• Look for Shortcuts: Some stations have hidden paths or quicker ways to complete them. Explore a bit to find these hidden gems.
• Stay Calm: Some of these challenges can be frustrating. Take a break if you need to. Coming back with a fresh mind can make a world of difference.

By mastering these key locations and their challenges, you’re on your way to becoming a Splatoon pro. Good luck, and may your ink always flow!

Using Weapons and Abilities Effectively#

So you’ve plunged into the dazzling world of Splatoon 2: Octo Expansion and you’re eager to splat your way to victory. Effective use of weapons and abilities is crucial to conquering the Octo Expansion. Let’s break it down, squid kid!

Know Your Weapons#

In Octo Expansion, you’re gonna encounter a variety of weapons. Here’s a quick breakdown of some popular types to keep in mind:

• Shooters: Your go-to for balanced combat. Splattershots are versatile and forgiving, great for beginners and pros alike.
• Blasters: These pack a punch with explosive shots. They might have a slower fire rate, but the splash damage can take out multiple foes at once.
• Chargers: Sniper-types that require precision. Charge up your shot, aim carefully, and splat your target from afar.
• Rollers: Fantastic for close-quarters combat and covering turf. Roll over enemies or fling ink for a long-range attack.
• Dualies: Offering rapid firepower and dodging abilities. Perfect for agile maneuvers and quick takedowns.

Effective Strategies for Each Weapon#

Shooters#

• Splattershot: Great for all-around gameplay. Use it to lay down ink paths for your team and splat enemies quickly.
• Aerospray: Covers a lot of ground fast. Use it in areas where inking turf is key, but stay cautious as the damage is low.

Blasters#

• Luna Blaster: Exceptional in tight spaces. Ambush enemies in narrow passages where its splash damage shines.
• Rapid Blaster: Maintain a safe distance from foes and utilize its mid-range explosions to control the battlefield.

Chargers#

• Splat Charger: Perfect your aim and practice patience. It’s ideal for holding defensive positions and picking off foes from afar.
• E-liter 4K: Longer range but slower charge time. Use the extra range to dominate larger maps and protect your turf.

Rollers#

• Splat Roller: Use it to quickly cover ground and surprise enemies. Roll around corners or fling ink to keep adversaries guessing.
• Dynamo Roller: Flings massive amounts of ink. Move methodically and sweep through areas with powerful swings.

Dualies#

• Splat Dualies: Execute dodge rolls to evade attacks and quickly return fire. Great for close and mid-range skirmishes.
• Dualie Squelchers: Longer range and higher mobility. Use these to stay nimble and outmaneuver opponents in heated battles.

Leveraging Abilities#

Abilities grant substantial benefits and can be the difference between victory and defeat. Here’s how to make the most of them:

• Ink Saver (Main/Sub): Reduces ink consumption for your main or sub weapons. Essential for weapons that consume a lot of ink quickly.
• Swim Speed Up: Increases your swim speed, letting you navigate the battlefield faster and escape danger with ease.
• Special Charge Up: Fills your special gauge more quickly. More specials mean more opportunities to turn the tide of battle.
• Ink Resistance Up: Reduces the amount of damage you take and the speed penalty in enemy ink. Crucial for staying mobile in enemy territory.
• Ninja Squid: Hides your squid form’s ripples while swimming through ink. Perfect for sneaky moves and surprise attacks.

Applying Abilities to Weapons#

Pair abilities wisely with your favorite weapons:

• Shooters: Combine with Ink Saver and Special Charge Up for sustained firepower and frequent special attacks.
• Blasters: Use Ink Resistance Up to safely maneuver close to enemies and Damage Up to maximize your offensive potential.
• Chargers: Opt for Swim Speed Up to reposition quickly and Opening Gambit to gain an early advantage.
• Rollers: Ninja Squid and Quick Respawn fit well for stealthy play and quick recovery after trades.
• Dualies: Pair with Dodge Roll Up for enhanced mobility and Ink Recovery Up to keep the ink flowing.

Mastering these weapons and abilities will make you an unstoppable force in Splatoon 2: Octo Expansion. Now get out there and show ‘em what you’ve got, Inkling! 🎮💧

Play like a pro, stay fresh, and splat on!

Strategies for Boss Battles#

Stepping into the world of Splatoon 2 Octo Expansion, you’ll encounter some seriously tough bosses. But don’t worry, we’ve got your back! Here are some solid strategies to help you take them down and emerge victorious.

The Mighty Octostomp Redux#

Let’s start with a familiar face, the Octostomp Redux. This guy’s all about stomping, so keep these tips in mind:

• Stay Mobile: The Octostomp will try to flatten you under its weight. Always keep moving to avoid his ground pounds.
• Aim for the Tentacle: Once it stomps down, its weak spot—a tentacle on its back—will be exposed. Ink up nearby walls, swim up, and unleash your firepower on the tentacle.
• Repeat with Variations: As the fight progresses, the Octostomp will add layers and become trickier. Dodge its attacks by watching its patterns closely, and use your highly inked surface to keep agile.

Octo Shower Supreme#

This one’s a flying, tentacle-ridden challenge, but you can handle it:

• Focus on Tentakooks: The Octo Shower is shielded by little Octocopters called Tentakooks. Take these guys out first to expose the boss.
• Use the Inkrails: Use the inkrails around the arena to reposition quickly and avoid the Octo Shower’s ink-blasts.
• Blast the Shower Head: Once the Tentakooks are down, the core Shower Head is your target. Ink it up and shoot the exposed tentacle to damage the Shower.

Inner Agent 3#

Now, onto one of the toughest—Inner Agent 3. This high-stakes battle requires precision and strategy:

• Keep Your Distance: Inner Agent 3 attacks relentlessly with various weapons. Maintain distance so you can dodge easily and plan your counterattacks.
• Watch for Specials: Inner Agent 3 uses special abilities frequently. When you see a special wind-up (like Tenta Missiles or Inkjet), be prepared to take cover or super jump out of the danger zone.
• Hit-and-Run: Take advantage of hit-and-run tactics. Fire off some shots, then retreat to dodge incoming attacks. Rushing in too quickly can make you vulnerable.
• Stay Calm: This battle is a marathon. Stay focused and calm—one mistake can be costly, so don’t rush it.

Sanitized Octolings#

Facing the Sanitized Octolings can be tricky since they mimic your own abilities:

• Control the Turf: Stay in control by inking as much turf as possible. This will give you more movement options and places to hide.
• Use Sub-Weapons: Bombs and other sub-weapons are your friends here. Use them to flush out or damage the Octolings without putting yourself in danger.
• Predict Movements: Octolings usually follow predictable patterns. Learn their habits and strike when they’re vulnerable or out of ink.

NILS Statue#

Finally, the NILS Statue battle is all about speed and precision:

• Time Management: You’re racing against the clock here. Focus on quick movement and efficiency when taking out the targets.
• Prioritize Easier Targets: Some targets are more accessible than others. Prioritize the easier targets to maximize the time you have left for the trickier ones.
• Use Bombs: If you have bombs, use them to clear multiple targets at once or to hit hard-to-reach spots. This can save valuable seconds in your run.

With these strategies in your arsenal, you’ll carve a path right through your enemies. Boss battles in Splatoon 2: Octo Expansion are designed to test your skills, but with practice and these tips, you’ll be splatting like a pro in no time. Good luck!

Unlocking Post-Game Content#

Finished the main story of Splatoon 2: Octo Expansion, and still hungry for more ink-filled fun? You’re in luck! The expansion offers a ton of post-game content that’ll keep you in the action. Here’s everything you need to know to unlock and enjoy this additional content.

Completing All 80 Tests#

First things first, you need to finish all 80 phases of the Deepsea Metro. Yes, it’s a hefty task, but it’s totally worth it. Every phase comes with unique challenges, and many will test your Splatoon skills to the max. You might have missed a few on your first run, so be sure to check the map and complete any tests marked with a ✖️.

Pro tip: If you’re struggling with any challenges, you can use CQ Points to call on Marina for help. You won’t get the full reward, but it’ll let you progress and eventually unlock the post-game content.

Finding All Four ‘Thangs’#

Throughout the Deepsea Metro, you’ll be on a mission to collect four mysterious objects called ‘Thangs.’ These are necessary to complete the main story. They are scattered across different lines and can be identified with the symbol 🛠️ on the map. Once you’ve collected all four Thangs and defeated the final boss, the main story is complete, setting you up for the post-game content.

The Secret Boss: Inner Agent 3#

Ah yes, the secret boss fight against Inner Agent 3 is the ultimate test of your skills. Want to unlock it? Here’s what you need to do:

1. Collect All Mem Cakes: Mem Cakes are little memory fragments you collect after completing each test. You’ll need to get all 80 of them from the main story challenges.
2. Complete All Tests: Just in case you missed any, make sure every test in the Deepsea Metro is completed, and all stations have been visited.

When you’ve collected all Mem Cakes and cleared all phases, you’ll get a message saying something mysterious has appeared in Central Station. Head back there, and you’ll be able to face off against Inner Agent 3.

Earning Gear Sets#

Unlocking post-game content also gives you access to some exclusive gear sets. Here’s what you can get:

• Octo Shot Replica: Your trusty Octo Shot from the story mode.
• Neo Octoling Armor Set: A sleek and powerful armor set.
• Gold Toothpick: Awarded after beating Inner Agent 3, making it one of the rarest and coolest gear pieces in the game.

The Final Reward: Playable Octolings#

Finally, after the credits roll and everything is cleared, you’ll unlock the ability to play as an Octoling in multiplayer modes. Switching from an Inkling to an Octoling is purely cosmetic, but it’s super cool and lets you show off your Octo Expansion mastery to other players.

Extra Fun: The Hush Hush Spaces#

Want even more? There are hidden rooms scattered around the Deepsea Metro known as the ‘Hush Hush Spaces.’ These are challenging optional areas that offer extra rewards. Keep an eye out when you replay levels, and see if you can find them all.

Wrapping It Up#

That’s about it for unlocking post-game content in Splatoon 2: Octo Expansion. The journey doesn’t end with beating the main story—there’s so much more to explore, unlock, and achieve. Whether you’re aiming to beat Inner Agent 3, earn exclusive gear, or flaunt your new Octoling look, the post-game has something for everyone. So grab that Splattershot, dive back into the Deepsea Metro, and keep the ink flying!

Happy inking! 🦑