Morpha

Morpha  is the boss of the Water Temple in Ocarina of Time. Created by Ganondorf once he acquired the Triforce of Power, it has complete control over the water in the room in which it resides, moving swiftly through it and creating long amoeba-like "limbs". This monster is responsible for the receded state of Lake Hylia as well as the frozen condition of Zora's Domain.