Tentalus

Tentalus is a boss creature featured in Skyward Sword. When Link tries to go to the control room on the Sandship, Tentalus appears and nearly destroys the whole ship. Link has to fight it to get Nayru's Flame to temper the Master Sword.

After opening the door to the power room the battle begins. Link must make his way to the deck of the Sandship, however most of the ship has been destroyed and there are tentacles in the way. In order to clear the way Link must destroy the tentacles with a Skyward Strike. After reaching the deck, Tentalus appears. First Link must avoid its tentacles and continue removing them with a Skyward Strike, once sevral tentacles have been removed Tentalus will surface and attempt to damge link with its arms. Link must shoot its eye with an arrow, stunning it. While stunned Link can attack it directly with his sword dealing damge, he can also cut off its "hair" to receive arrows and hearts. After enough damge has been dealt Tentalus will tilt the ship towaeds it causing barrels to fall towards Link. Link must climb up to the higher part of the deck where the battle contiues. Tentalus will contiue to attack in mutch the same manner and is damged in the same way. However instead of attacking with tentacles from below it will attack with its "Hair", witch have teeth. They can be removed with Link's Sword. Once Tentalus has been defeated Link will be rewarded with a heart container and Nayru's Flame.