Splatoon is a third-person shooter video game developed and published by Nintendo for the Wii U, which was released worldwide in May 2015. The game centers around fictional characters known as Inklings—anthropomorphic squid that can transform between humanoid and cephalopod forms and swim through colored ink sprayed on surfaces using various types of paint-based weapons. Splatoon features several different game modes, including four-on-four online multiplayer and a single player campaign.