Real Bombchu

Real Bombchu are recurring enemies in The Legend of Zelda series, first introduced in Majora's Mask.

Majora's Mask
In Majora's Mask, Real Bombchu are an organic, living version of the Bombchu bombs introduced in Ocarina of Time (and present in Majora's Mask). In-story, they are probably the source of inspiration for the mechanical Bombchu. These critters run around with bombs hanging from their tails, waiting to blow themselves up in order to damage their enemy. If they sight Link, they will run after him and explode either upon contact or after a short while. An arrow from the bow will make the Real Bombchus explode; however, if Link uses the Hookshot, the Real Bombchu will just be reeled in towards him and explode in his face. In addition, if Link raises his shield when facing a Real Bombchu, it will bounce off, fall backwards, and explode. Like most enemies, Real Bombchu cannot hurt Link if he is on Epona. They're susceptible to the Stone Mask, and thus wearing it will cause them to completely ignore Link.

The Wind Waker
In The Wind Waker, Real Bombchus are simply Rats holding Bombs. Their main habitat is the Forsaken Fortress, but can also be found in other places like the Dragon Roost Cavern. The Real Bombchu can be seen emerging from rat holes, which they will leave to throw a bomb at Link and then quickly retreating back to their holes to get another bomb. If Link places All-Purpose Bait near the holes, he will be able to talk to these creatures.

Four Swords Adventures
In Four Swords Adventures, again with an appearance similar to the Majora's Mask's Real Bombchu, they seem to prefer colder stages like Frozen Hyrule. The swarms are to be avoided or even stopped by solving the switch puzzles to seal their entrance.