Nejiron

are enemies in.

Characteristics
Nejirons hide in the ground along the Road to Ikana and inside the Stone Tower Temple, emerging to attack Link by rolling into him. These creatures smell of gunpowder, alluding to their volatile nature, and will explode when hit. Long-range weapons such as the Bow and Hookshot are best used to deal with them. However, each time one is defeated, another will emerge from the ground to take its place. The Stone Mask can be used to avoid an encounter with these creatures completely.

Nomenclature
The Japanese word "Neji" means twisted or warped, whereas the suffix -ron may refer to a Goron. According to the official The Legend of Zelda website, Nejirons have evolved to mimic the appearance of Gorons in order to fool their prey.