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 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, bucket, or brush-based weaponry. Splatoon features several game modes, including 4-on-4 online multiplayer, and a single player campaign. (wikipedia.org)