Level 1 Light World, Armos Knights: Slash and dodge when they come at you. When the last one becomes red slash frantically Do Not dodge.
Level 2 Light World, Lanmolas: When a hole apears get close and begin to slash about 6 hits should do it.
Level 3 Light World, Moldrom: Use good timing and common sense as your main weopons against this guy. First aim for his tail because its his only weak spot (note: somtimes aiming at his head will end up hitting his tail from due to fast jerking.) Hit eight times to defeat it, stay on platform and avoid hole in center and avoid sides. When you slash make sure when you bounce off to not fall off platform.
Beginning Level cont. , Agahnim: Use either the Master Sword or the Bug Catching Net to deflect fireballs back at him, (There is also small blue balls and Chain lightning but neither will hurt him.) After successfully hitting Agahnim several times he will flee.
Level 1 Dark World, Helmasaur King: Use your Magic Hammer on his mask to make cracks and eventually break off his mask, after removing his mask take out your bow and shoot the green spot shoot several arrows at once. He will die pretty easily.
Level 2 Dark World, Arrghus: Shoot and pull in the bubbles with the hookshot then slash them until all the bubbles are gone then slash his bare body until he dies.
Level 3 Dark World, Mothula: Shoot the Fire Rod like a maniac and avoid spike traps the Master Sword also works, this shouldn't be too hard if you have a green potion.
Level 4 Dark World, Blind the Thief: Run around chasing him slashing like a maniac when his head comes off wait till his body grows a new head and start slashing once 3 heads are floating you will be very close to finishing the battle.
Level 5 Dark World, Kholdstare: Shoot your fire rod and avoid falling ice until he thaws or just use your bombos medallion, after he melts begin slashing the 3 eyes until they're all dead.
Level 6 Dark World, Vitreous: Stay in the far corner and wait till small eyeballs come then slash them apart and wait till more come, by staying in the corner you will avoid all chain lightning, once the big eyeball comes stay in the corner and he will just bounce off your sword over and over if you keep slashing, by staying in the corner this guy will be very easy for you.
Level 7 Dark World, Trinexx: Take out your fire rod and turn the Ice head red during this state slash frantically until he dies, then take your ice rod and turn the fire head a different color and begin to slash, once both are dead the stone guy will shead his armor and run around, aim for his red spot and he will die without much effort.
Level 8 Dark World, Armos Knights, Armolas, Moldrom, Agahnim: Use above methods for these except now boss 1 has icey floors, boss 2 has shooting statues, boss 3 is much easier, and Agahnim has 2 clones.
Pyramid of Power Dark World, Ganon: the minute you fall in Ganon will take so take one cheap swipe, now just slash like a crazy person over and over until the breaks the floor then use good timing until he breaks the floor 4 times then light the 2 toarches and slash him and quickly shoot a silver arrow a few times of doing this and you will win.