Boxes Locked! Keys, Please! is a Hero Mode stage in the Camp Cuttle sector of Splatoon 3. Continue reading to see a full walkthrough, the best weapon to complete the stage, and how to unlock it!

How to Unlock Boxes Locked! Keys, Please!

Stage Location
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Sector	Camp Cuttle	Stage No.	3
Entry Fee	None	No. of Tries	No Limit

Boxes Locked! Keys, Please! Weapons and Rewards

Weapon Choices for Boxes Locked! Keys, Please!

Weapon	Explanation
Hero Gear	・Boxes Locked! Keys, Please! is a tutorial Stage, so you can only choose the Hero Gear to complete it. ・The Hero Gear has a high fire rate but short range, so be sure to keep a safe distance when attempting to splat enemies. ・The Sub Weapon for this stage, Small Fry, can be used to reach items and attack enemies from a distance.

Rewards for Boxes Locked! Keys, Please!

Boxes Locked! Keys, Please! Walkthrough

Required steps to complete Boxes Locked! Keys, Please!
Collect Keys for Vaults Make Use of Ink Trails Use Smallfry for Hard to Reach Items

Collect Keys for Vaults

Vaults must be unlocked in order to use the item inside.

Find keys to unlock vaults.

The Gimmick for Boxes Locked! Keys, Please! is using keys to unlock various vaults found throughout the stage. the keys for this stage are often hidden inside of boxes, so make sure to destroy every box that you see to make sure that none go missing.

Make Use of Ink Rails

Use ink to activate ink rails.

You can travel along these rails while in swim mode.

Using ink on certain canisters allows you to create ink rails, which you can use to access certain areas. You must be in swim mode to use these rails, and if you exit swim mode while on them you will fall off the rail, so be careful!

Use Small Fry for Hard-to-Reach Items

Your sub weapon, Small Fry can be used to grab items, attack enemies, or activate switches from a distance. Press and hold the R button to aim Small Fry, and release it when you are ready to get those objects that neither you nor your gun can reach,

Boxes Locked! Keys, Please! Collectible Locations

Splatoon 3 Related Guides

Camp Cuttle Map, Stages, and Bosses