Cheep-Cheep

Cheep-Cheeps are small flying fish that first appeared in and dwell in various waters of Hyrule, Koholint Island, Labrynna and Holodrum. They only appear in underground side scrolling areas.

Cheep-Cheeps are very common enemies in the Mario series since Super Mario Bros. and appear in a large number of Mario games and are found in various oceanic areas. Those in the Zelda games seem to primarily appear in underground pools, however, rather than open waters. Their behavior is very similar to those seen in Super Mario World, usually swimming horizontally or vertically back and forth, but sometimes jumping straight up from the water to attack Link. While swimming underwater, Link's sword can quickly eliminate them, so they do not pose much of a threat. Those that jump out of the water can be defeated by stomping on them, either by standing above them or using the Roc's Feather.

The waters of Four Swords Adventures also have extremely large Cheep-Cheep alongside the normal size. These will charge at Link and cause a lot of damage, and must be swum past quickly.

Trivia

 * The Link's Awakening Nintendo Player's Guide erroneously refers to these enemies as Cheep-Sheep.
 * Cheep-Cheep's Japanese name, Puku-Puku, is the Japanese onomatopoeia for bubbling noises.
 * Bago-Bago, skeletal fish from, are likely designed in reference to Cheep-Cheep.