How to fight the bosses

Gohma
Hit it in the eye already! Shoot it with the slingshot then hit it with the sword. If you have much touble with this guy---start worrying
Dodongo
just like the original dodongoes throw bombs in his mouth then while he'd stunned whack him with the sword. stand to one side as he rolls by. Scary isn't he?
Octorock
You know that critter that runs about in jabu jabu's belly right after the princess is uh captured. Use the bomerang to stun it. The wait close by as is spins throw the boomerang again if he's facing away from you and the green spot is showing whack him with the sword. If not keep boomeranging him until he does turn around. If you get stuck being chased watch the center island if it changes direction the octorock has changed direction act accordingly! or else he'll run you down.
That big tentacle thing you fight after octorock.
Basically do what navi says. Whack the three tentacles at the top with your boomerang. remember to keep moving or you'll get shocked. attack the body while the jellyfish are spinning. When they stop attack them individually. If you've played A Link to the Past it's similar to the monster you fight in the water dungeon of the dark world except without the hookshot
The Poe sisters
FInd them in the castle and shoot their pictures. You have to be pretty far away from them for them not to run. Fight them by using your shield when they spin and then whacking them when they reappear. Figuring out which one of the purple poe sisters is real is quite easy just watch for and extra movement by one of them. an extra spin that the others don't make etc.
Phantom Gannon
This guy can really cause some trouble. Stand in the center of the room. Draw your bow and move around to each picture. Shoot gannon as he comes out of the picture. If the horse turns suddely and goes back into the picture then that was the decoy and the 'true' gannon is coming from one of the pictures close by. Once he has been unhorsed use the master sword to send the magic beams back at him. You have to be really quick about it or else he will send it back at you again. If you score a hit hit him with your sword while he's down.
Volvagia
What's it's weakness? Do you mean to tell me you didn't catch the obvious hint that Darunia gave you? Use your Z button and give the dragon a real headache with the megaton hammer simply wait for the dragon to stick it's head out of those holes and whack it again. When it flies around avoid it! While it's stunned hit it with the sword
Dark Link
I could barely get any hits on this guy! So go the cheating route. Use din's fire over and over on him then polish it off with a couple of whacks from the master sword.
The big amoeba thing
Do as navi says and yank the nucleus out and whack it. Distance is the key in this battle stay really far away then use that longshot and attack the nucleus. once it's nearby run far away again. If you don't you'll end up getting tossed around a LOT.
Bongo Bongo
There's a definite techinque to this guy. use the eye of truth to look at it. Use arrows or the hookshot if you run out to shoot each of the hands in turn then shoot the eye after you've shot it it will be stunned so whack it with the sword. Maintain a distance at which you can see both hands more or less at the same time. Don't forget to shoot the eye or it will run over you!. If you get thrown be sure to 'unlock' your targeting or else you might be standing in a green pool of stuff and not even realize it.
Iron knuckle
THIS guy(girl) does some serious damage. lure it over to the columns and as it breaks them hearts fall out.If you are in close backflipping does not work to avoid the axe use the shield or side jump. If you are adult link use the goron sword it you have it.
The two witches
They are somewhat difficult to fight but they are a lot of fun. Use the mirror shield and reflect ice beams to the fire witch and fire beams to the ice witch. When they join together absorb the beams of the witches with your shield. You must absorb three of one type in a row to get the shield to spit it back out at them. If you are charged with one type and absorb another of a different type if will cancel out your previous energy absorbtion. They will generally throw three of each type in a row so if you get off cycle count the numbers until you are on cycle again. After you beat them read all of the stuff they say, it's pretty funny.
Gannondorf
SO you've finally made it to the final battle. If you are like me by this time you forgot how you fought phantom gannon so you get killed several times before you figure it out. Okay here's how it's done. Do not stand under him! run over to one of the corners and turn to face him(navi can't help you how cheap!)He should start throwing balls of lightening at you. hit them back at him with the master sword. You'll end up in a sort of ping pong match and nothing but good timing will keep you from losing. After you score a hit with his lightening balls shoot him with the light arrows. If you miss you have to start all over. If you hit him start running over to the central platform immediately. Punish him with the master sword. Repeat this over and over until he's dead.

Or at least you thought he was dead. . .

after you run through the tower you have to face ganon the beast version of gannodorf. They take the master sword from you too so I hope that you've found the goron sword. Okay his tail is his weak point. He's so huge that you can dive between his legs using your forward roll then whack his tail. easy