Splatoon is a 2015 third-person shooter video game developed and published by Nintendo for the Wii U. The game centers around Inklings—cephalopodic lifeforms that can transform between humanoid and cephalopod forms and frequently engage in turf wars with each other and use a variety of weapons that produce and shoot ink while in their humanoid forms or swim and hide in surfaces covered in their own ink while in their cephalopodic forms. From Wikipedia