Splatoon 2 Octo Expansion is a shooter video game that is developed and published by Nintendo.

This is a downloadable single-player campaign for Splatoon 2. Get to play as an Octoling for the very first time in the game with this Octo Expansion. Included are Octo-themed gear that can be available for battle at an instant.

Play as Agent 8, she is a new character who suddenly wakes up on a dark subway platform without any of her memories. From there you must navigate your way out of the twisted depths and battle whoever comes after you and reach the upper world of Inkopolis.

The adventure in the subway is a single-player campaign which spans up to 80 missions, finish that and reach the surface and you can join the multiplayer matches as an Octoling.

So many mysteries must be uncovered, get help from Pearl, Marina, and Capn Cuttlefish.