Dodongo

Dodongos are powerful creatures who appear in The Legend of Zelda series. They're a green, hulking species who spew fire out at their opponents. They can be killed by tossing a bomb in their mouth, and can also be harmed if their tail is removed from their body.

They can't be killed by standard sword attacks, seeing how thick and tough their skin is, though the insides are much more vunerable, which is why they can be killed once they've engulfed a bomb.

In the series, the Goroh are presumably the Dodongo's main enemies, as they've fought countless times.