Splatoon is a 2015 third-person shooter video game developed and published by Nintendo for the Wii U. The game centers around Inklings—anthropomorphic 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 colored ink while in humanoid form, or swim and hide in surfaces covered in their own colored ink while in their cephalopodic forms. Wikipedia