Legend of Zelda: Twilight Princess HD - Boss: Twilit Dragon Argorok

This is the boss of the City in the Sky, a giant dragon that terrorizes the Oocca living there. This battle can be a little annoying.

The first thing to do when the battle starts is to equip the iron boots immediately; he will attack with gusts of wind. With the iron boots still equipped, clawshot your way to the top of one of the four pillars on the battlefield, and wait for the dragon to float up. When his tail becomes targetable, clawshot it with the iron boots equipped to slam him into the ground, damaging his armor. Rinse and repeat.

After a few rounds of this, he will spawn multiple flying clawshot targets (Peahats) that float around the top of the four pillars; the point of these targets is to allow you to circle around the dragon with the double clawshots, and land on the weak point on his back for damage. When you begin circling him, he will breathe fire in your direction, which can be easily dodged by clawshotting away. Sometimes he will switch directions with his fire attack, so pay attention to his movements later in the battle.

Once he falls, you obtain the final mirror shard!