Mystery Boxes are rewards for leveling up your Hotlantis Catalog in Splatoon 3 and contain random items such as Ability Chunks, Food and Drink Tickets, as well as Stickers and Card Packs! Read on to learn what are the contents of mystery boxes and how to get them.

All Mystery Box Contents

All Types of Ability Chunks

You can get 3 random Ability Chunks from all types of Abilities. These are vital for scrubbing and rerolling Abilities for your favorite gear, allowing you to custom-fit your loadout with the best abilities!

How to Get and Use Ability Chunks

All Types of Drink Tickets

Mystery Boxes also contain a random assortment of Drink Tickets, which you can use to purchase drinks at the Crab-N-Go concession stand in the lobby for buffs during matches!

How to Get Drink Tickets

Stickers

You can also get 3 Stickers, which you can use to customize your locker in the lobby.
List of Stickers and How to Get

Tableturf Battle Card Packs

Finally, you can get Tableturf Battle Card packs from Mystery Boxes, and have at least one guaranteed Fresh card in it!
All Cards and How to Unlock Them

How to Get Mystery Boxes

Obtained as a Catalog Reward

Mystery Boxes are level-up rewards for reaching certain level-up milestones in the Catalog, with the levels 25, 50, 75, and 99 rewarding these boxes for a total of 4 Mystery Boxes.

The items you get from Mystery Boxes are very rare, so it's a good idea to increase your catalog level so that you can get these rewards sooner.
How to Level Up the Catalog

Splatoon 3 Related Guides

Tips and Tricks: Beginner's Guide to Splatoon