The Null Kirbo is an unseen mythical kirbo that is said to house incredibly strong amounts of Null inside of itself. Little is known about it because it has never officially been seen before, but it is said to be immensely large, with the Null symbol engraved on its back. There is a strong possibility it could contain a Null Crystal, acting as a cross between the Crystal Kirbo and a Null Harnessing Device (NHD) from The Room series of games. It is implied that Waterglue Kirbo is a Null Kirbo, if not the Null Kirbo.