Boxes Locked! Keys, Please!

From Inkipedia, the Splatoon wiki
02: Sink into the Ink and SWIM!
Return of the Mammalians missions
04: What Are They? Can We Stop Them?!

Boxes Locked! Keys, Please!
S3 crater m3.jpg
Site The Crater
Fee Power Eggs No Fee
Weapons and Rewards

S3 Weapon Main Hero Shot Level 1.pngS3 Weapon Sub Smallfry.png

Power Eggs 100

First-time Bonus Power Eggs 500
Music Crater Eighters Routine

Boxes Locked! Keys, Please! is the 3rd level in Splatoon 3's story mode, Return of the Mammalians.


The location of the third Kettle in The Crater.

Accessing the third level is unsurprisingly another straightforward process, as the player has to continue walking down the corridors yet again until their path is blocked by more Fuzzy Ooze. On their left, they will see the kettle.


Checkpoint 1

The first vault hiding an inkrail.

The level starts off with the player being confronted with a bunch of Crates. Among them is a vault to which the responding key is just ahead, hidden inside a crate. After unlocking the vault, the player can use an Inkrail to progress to the next checkpoint.

Final Checkpoint

The main section with three different paths.

The final section begins with the player given the choice between 3 paths. For the path in the middle, the player has to activate a Splat-Switch, but then will see that to progress further they need to get past two more vaults. On the left there is another inkrail, leading to a small portion where two Octocopters will try to shoot at the player. A vault will be surrounded by grates. When the player finds the key, they can unlock the vault revealing yet another inkrail. While that inkrail will lead back to where the section started, it will be essential to progress further soon enough.

The player getting attacked.

Afterwards, the player should progress to the right path, where the player has to throw Smallfry towards another inkrail in order to activate it. Then they will be required to activate once more an inkrail leading up a small tower, on top there is a crate holding a key and yet again an inkrail, however this time the player will realize that they cannot reach it from there, they can merely activate it. After returning back to the main section, they will see that they can use the inkrail to jump on top of the other and reach a new area, hiding the last key required. After unlocking the two vaults, they will have to activate the last inkrail of the level and ride towards the Zapfish, finishing the level.

The player jumping from one inkrail to the other.

Enemies and Mechanics

First Introduced

Previously Introduced


S3 Icon Cuttlefish.png Cuttlefish's Quotes

You wanna get to what's inside that vault? You gotta find a key!
There it is! Grab that key and unlock the vault.
There you go. Now ink up that thingamabob!
Aha! You activated an inkrail! Hop on and ride it by pressing .
Now, don't panic, but if you let go of , you'll fall to your doom. So hold on tight!
Well, well, well. Another vault. Find the key!
Thar she glows! I can see the Zapfish from here.
Octocopter spotted! Ink it up!
Remember-you can slip under or through grates by pressin' to get into swim form.
If your ink won't reach, it's Smallfry's time to shine!
Try as you might, I don't think you're gonna be able to hop onto the inkrail from here...
Think you could jump from one inkrail to another? It's worth a shot!
After the mission:
Keep it up, Agent 3! You're making me proud. Now, I don't wanna ruffle your tentacles any further than they've already been aruffled, but... Those fuzzy Octarians are freakin' me out. I think we oughta consider callin' some backup. Lemme just fire up the ol' communicator... Check, check! This is Cuttlefish, over. Do you copy?
...Did they just hang up on me?! Agents these days, am I right? So impatient...
Dagnabbit, this ol' thing is busted. Oh well. C'mon, let's go!

S3 Icon Marie.png Agent 2's Quotes

Agent 2 here. Over. Wait—Gramps? Is that you? Where are you? Agent 1, this is Agent 2. Gramps has wandered off again. Over.
...Roger that. Stay fresh!

S3 Icon Callie.png Agent 1's Quotes

Well, what are we waiting for, Agent 2? Let's go collect him!

S3 Icon DJ Octavio.png ???'s Quotes

Ksss-ksssh! Kssssssht! GYA...A HA... Cuttl... I foun... you!

Names in other languages

Language Name Meaning
Japan Japanese 怪奇!閉ざされたドアに■■■■■■を発見?!
Kaiki! Tozasareta doa ni ■■■■■■ wo hakken?!
Weird! ■■■■■■ discovered behind the closed door?!
Netherlands Dutch Achter slot en grendel! Sleutels graag! Under lock and key! Keys please!
France French (NOE) Caisses vérouillées! Par ici les clés! Crates locked! Hand over the keys!
Germany German Schlüsselerlebnis für Spürnasen! Key experience for people with intuition!
Russia Russian Ящики заперты! Нужны ключи!
Yashchiki zaperty! Nuzhny klyuchi!
Boxes locked! Keys needed!
Mexico Spanish (NOA) ¿Cajas cerradas? ¡A buscar llaves! Locked vaults? Look for keys!
Spain Spanish (NOE) ¿Cerrojos al canto? ¡A buscar llaves!
China Chinese (Simplified) 怪诞!在紧闭的门中发现了■■■■■■?!
Guàidàn! Zài jǐnbì de mén zhōng fāxiànle ■■■■■■?!
Weird! ■■■■■■ discovered behind the firmly shut door?!