Kamukamu

are fish like enemies found in Wario Land II. It's a small, sharp toothed fish resembling the Big Kamukamu boss.

Kamukamu swim around the room in a diagonal pattern, turning around and going up or down whenever they hit a wall. If they see Wario, they charge at him while snapping their jaws before swimming away like normal.

Strangely, these enemies only seem to appear in the original Game Boy version of Wario Land II. In the Game Boy Color update, they are instead replaced by normal Sawfish.

Trivia

 * This enemy exists in the colour version with fully redrawn graphics, but they go unused in the normal game.