Wind Waker Bosses

Gohma:
Gohma will swipe at you with its claws, and shoot fire from its armored eye sometimes. When you have room, look at the ceiling to find Valoo's tail hanging. Grapple onto it with the Grappling Hook, then swing/jump over Gohma. This will cause the ceiling to fall on Gohma, damaging its armor.

Kalle Demos:
It hangs from the ceiling by many tentacles above, with larger tentacles below to attack you with. Target the ones holding the boss on the ceiling while moving to avoid being smacked by the lower ones.

Gohdan:
You will notice that both hands have eyes in them. Target each eye and shoot 2 arrows into each to knock them out of commission temporarily. Then, aim at the head's eyes and shoot them with 2 arrows each.

Helmarog King:
The giant bird will be flying around to start, then it'll land in the arena. Stand close to it, L-Targeting it. When it's about to peck at you with its beak, press A to jump out of the way, causing the beak to get stuck in the ground. Run up and smash it with the Skull Hammer.

Jalhalla:
For this giant ghost, its obvious weakness would be light. So, stand in the light beam and reflect light at the boss's body. After being exposed to the light, Jalhalla will freeze in place. Pick it up and throw it at a spike column to make it split into smaller Poes again.

Molgera:
For this sand worm, attack it by waiting until its mouth is wide open above the sand. L-Target its tongue and pull it out with the Hookshot. Then quickly slice it a few times with the sword.

Puppet Ganon:
Start by aiming the Boomerang at the blue strings holding Ganon upright. Cut them all loose & aim for the one holding the tail. Once the tail is cut down, shoot a Light Arrow at the blue ball. For the next phase, Puppet Ganon looks like a giant spider. Wait until the spider's about to come down & get where the blue ball is, and shoot it with a Light Arrow For the last part, the puppet will slide around the room as a snake. He moves too quickly for you to hit the tail. So, attack the head with your sword, then shoot the tail with a Light Arrow.

Ganondorf:
In the first one, Zelda will try to shoot Light Arrows at Ganondorf while he comes at you with 2 swords. When Zelda stuns him, run in and attack with the sword. After a couple rounds of this, Ganondorf will knock Zelda away, stopping the Light Arrows. So, avoid the sword attacks once more, and wait for a chance to attack. Hit him a few times with the sword. When Zelda awakens, that's when the attacking on your end will get really difficult. Zelda will shoot Light Arrows towards you, and you're supposed to reflect them off your shield so they hit Ganondorf. When the arrow is shot, it'll bounce off and stun Ganondorf. Now, you must QUICKLY get in and slash him with your sword.