JAMSTEC

JAMSTEC, the Japan Agency for Marine-Earth Science and Technology is a real-life Japanese national research institute that has been represented in and the Octo Expansion.

Jamsteeec
In April and May 2018, JAMSTEC and the Japanese Splatoon Twitter account announced a collaboration and cross-promotion called Jamsteeec, which included:


 * The New Lifeform vs. Future Tech Splatfest.
 * Inkopolis' version of JAMSTEC, with a few details:
 * The Oceanic Hard Hat headgear, designed after the real-world JAMSTEC hard hats.
 * The research and deep-earth drilling ship, CHIKYU, was added to the background of the Manta Maria stage.
 * The deep-sea submarine Shinkai 6500 was shown to exist in the background of Abracadabra Station.
 * There was also a post highlighting the fact that the Autobomb was designed after the Shinkai 6500.
 * Videos showing real-life deep sea squids and octopuses, in comparison with Inklings and Octolings.
 * Several posts on the real-life creatures that inspired some of the characters in the Octo Expansion, including C.Q. Cumber (sea pig) and Iso Padre (giant isopod).
 * A free "open day" held on 2018-05-12 at the JAMSTEC headquarters in Yokosuka was promoted on the SplatoonJP Twitter.
 * Splatoon 2 collaboration activities at the event itself, such as presentation of the "research reports", an exhibition stamp rally, photo opportunities, and coloring book illustrations.