Defeating Ganon's Tower Boss:

It will have strings on it. Hit each string with your Boomerang about two times and it will fall . Then, hit its blue ball on its tail with your Light Arrow. It will go back up. Repeat this two more times. Then, it will transform. When it jumps up, quickly look at it with the reflection in the water. Locate its blue ball on its tail and go near the side it is on. It will fall down. Shoot the blue ball with the Light Arrow. Repeat this two more times, and it will transform. L-target it, and shoot it with any arrow . Then, very quickly shoot the Light Arrow at the blue ball on its tail. Repeat this two more times until it is defeated.