SkyWhale

The SkyWhale is a mini-boss from The Legend of Zelda: Phantom Hourglass. Specifically, it is the second mini-boss fought at sea. (The first one being the Giant Eye Plant) It resembles a large floating purple and black Whale with four tentacle-like fins, large lips, a horned nose and six eyes.

It is encountered when Link sails into the waters of the south-eastern sea for the first time. Upon sailing up toward Goron Island, a large cyclone will appear and take the ship into the sky, making the screen black out. As visual contact is re-established, Linebeck tells Link that the the ship's engine has been soaked and needs time to dry. While they are stuck, the SkyWhale appears.

Battle
The SkyWhale has three attacks: sending yellow balls of energy towards Link, which can be destroyed with the cannon, sending Eyeball Monsters and swooping down, ramming the side of the ship. This attack, unfortunately, is unavoidable. However, if it has it's mouth open as it swoops down to ram into you, a bomb can be shot at it to make it retreat. The only way to defeat it is to hit its eyes with the cannon. Each eye will turn pink after being hit once, and then close after being hit twice. Once all eyes are hit twice, the creature will fall into the ocean.