Dangoro

Dangoro is the mini-boss of the Goron Mines. He is a Goron, and is the guardian of the Hero's Bow.

He looks similar to an average Goron, but more muscular, and with a much rounder face. He also wears armor on his arms, back, and head. When Link first encounters him, he assumes that Link is an intruder, and prepares to fight him. After being defeated, he realized that Link was sent to the mines, and grants him access to the chamber in which the Hero's Bow is held.

Battle

When you first start the battle, run towards Dangoro. When he winds up to punch, hack at his belly- his only weak point. Once he takes enough damage, he'll curl up into a ball and charge towards you. When he does that, whip on those Iron Boots, grab Dangoro, and throw him into the lava. Repeat this process two more times to defeat him.

Reward

Once you beat him and he emerges from the lava, he will realize that you are supposed to have the treasure in the next room. Go in the room, open the chest, and your reward will be the Hero's Bow.