Kodongo

are recurring NaN Enemies in. They are small reptilians with an appearance similar to a rhino or triceratops, much like a Dodongo.

Characteristics
Kodongos often appear behind low barriers, where they walk back and forth occasionally breathing bursts of three fireballs. These fireballs can reach beyond the barrier, but it is difficult for Link to hit the Kodongo. The fireballs will burst into flame when they impact on something, so they can temporarily block off short passageways with their flames. The Kodongos themselves are weak, and can be defeated with a single sword stroke, although they are invulnerable to other attacks like the Boomerang.

Green Kodongos appear in the Palace of Darkness in the Dark World, where they live in a pitch black maze-like room, making their attacks more dangerous, but they themselves are no stronger than the red variety.