Splatoon is a third-person shooter video game developed and published by Nintendo for the Wii U, and released worldwide in May 2015. The game centers around characters known as Inklings-beings that can transform between humanoid and squid forms, and hide or swim through colored ink sprayed on surfaces using gun or brush-based weaponry. Splatoon features several game modes, including 4-on-4 online multiplayer and a single player campaign.