Legend of Zelda: Skyward Sword - Boss: Ancient Automaton Koloktos [HD]

Battle starts at 0:43
This is the boss of the Ancient Cistern and also the fifth boss in the game. He looks like a giant idol with multiple arms. The way to win is to use the whip to pull his arms off and then attack his heart. After some damage, he'll grow legs and draw multiple swords to attack you; rip off his arms and use his own blades to cut his legs off and attack his heart.
After the battle, Link powers up his Goddess Sword and notices that the Triforce of Courage is resonating on his hand.