Don Zunāna
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Koiumare is a giant koi in Donkey Kong Country: Tropical Freeze. It is found in an apparent dead end near the beginning of Amiss Abyss, where it cannot be seen initially as the area is shrouded in darkness. However, by scattering a nearby school of bioluminescent fish with a corkscrew, the area will light up and reveal Koiumare sleeping in a grotto in the background. Koiumare immediately wakes up and collapses the wall on the right, then retreats deeper into the grotto, disappearing completely. With the dead end destroyed, the Kongs can proceed through the level as normal.
A Blue Finley resides in the same area and will be killed by Koiumare during the motions, unless it was defeated beforehand.