Blizzeta

Blizzeta is the boss of Snowpeak Ruins, the fifth dungeon of Twilight Princess. The boss is actually Yeta, a Yeti that leads Link to the shard of the Twilight Mirror (which she holds). She becomes possessed by the Mirror Shard and tells Link he cannot have it. The boss fight now begins.

At first you have to use the Ball and Chain to chip away at the ice heads surrounding her until barely anything is left. Now, she rises into the air with and summons ice spikes. She also encases herself inside another ice barrier. At first, the spikes will fall and try to impale you, but as long as you keep running they wont touch you. If you can, break one or more of the spikes with the ball and chain after they fall. They will try to circle around you and make a trap, allowing Blizzeta to fall to the floor in an attempt to crush you. Avoid her and swing the Ball and Chain to cause damage to her ice shield. After that, they all get called up again and they will float directly above and slam into a circle around you once more. Do this a few times and she will be defeated, getting you the second piece of the Twilight Mirror and a Heart Container.

Trivia

 * Since the only weapon that can be used on Blizzeta to cause any damage is the Ball and Chain, this boss does not experience a Critical Point, or a narrow space of time where Link is able to strike at a boss in fatigue, or other state, denoted by a triumphant music change.