There are 2 bosses you have to fight. Ganondorf, then technically the last boss is Ganon.
Satisfaction
If you are talking about Ocarina of time, you can always find walkthroughs. But for the last boss; you have to use your hammer.
Barinade
Electrocute him.
move around
Shadow Temple.
Ghoma, took me 3 minutes :D
Beat a boss and a chest will appear with a bow in it.
In Ocarina of time, you will eventually reach the Water Temple. Dark Link will be the semi boss. A tip to defeating this foe would be to use the megaton hammer.
Dark Link makes his appearance as the sub-boss of the Water Temple
Put a bomb in the center of the room.
Queen Gomah, The spidery thing in the basement of the deku tree.