Cube Kamonohashi (キューブカモノハシ, literally "Cube Platypus") is an auxiliary/weapon Zord from Doubutsu Sentai Zyuohger (2016). The mecha of this series are the Zyuoh Cubes, or Cube Animals: cube-shaped objects that unfold into animals and combine into robots such as ZyuohKing and Wild ZyuohKing. Cube Kamonohashi is a cyan platypus and belongs to the supplementary cubes rather than the six core "King's Credentials." Instead of a number it bears an exclamation mark ("!"), marking it as a genuine Zyuoh Cube that is nonetheless not one of the six credential cubes. It has no dedicated US name: Zyuohger was never adapted into a Power Rangers season, so Cube Kamonohashi was never released as a Power Rangers/Hasbro toy and remained Japan-exclusive.

On screen, like every Zyuoh Cube it folds between a compact cube and an animal figure. In toy terms it is a repaint (retool) of Cube Mogura (mole), sharing that mold's shape and basic functions. It can additionally be rebuilt into the "Kamonohashi Laser," a weapon ZyuohKing can wield for a finisher; this weapon mode is toy-exclusive and not consistently established in the show. It thus belongs to the line of small auxiliary/weapon cubes that attach to or are held by the larger robots.

The DX toy is made by Bandai (Japan) and is part of the 2016 Zyuohger line. It is a small, all-plastic cube with no die-cast content, converting between cube, animal, and weapon (Kamonohashi Laser) modes. Cube Kamonohashi is a limited special variant: a cyan repaint of the DX Cube Mogura and one of four such color variants (alongside zebra/Shimauma, owl, and leopard). It was distributed, among other ways, in the "Zyuoh Cube Weapon EX Cube Shimauma & Cube Kamonohashi" set together with the zebra cube, and carries the exclamation mark in place of a number.