Deepsea Metro

The Deepsea Metro is a subway system running deep beneath Inkopolis. It serves as the mission hub for Octo Expansion. It is operated by a company named Kamabo.

The Deepsea Metro runs along several lines, each containing stations that make up the expansion's levels.

C.Q. Cumber appears to be the Deepsea Metro's conductor, and denizens of the deep are seen riding in subway cars as passengers.