If there isn't one, there should be.

Given they did put in a Yoshi's Wooly World stage, a game that's not coming out until later this year (maybe a whole year after Smash 4, depending on if Nintendo makes it a summer or fall release), I'm a bit surprised Splatoon got no early recognition in Smash. Like an ink gun weapon to slow down opponents who get shot with it or land in the ink on the ground, or an Inkling assist trophy that essentially does just that, but moves around the stage trying to hit your opponents or cover as much ground as he or she can so you're free to keep fighting without an item.