when fighting trinnex in turtle rock, make sure you have alot of magic medicine(its good to carry some in a bottle, and a few fairies.
you must try and beat the ice-head first, because it freezes the ground making it hard to walk.to do this,use the fire rod and keep hitting him alot until he blows up.
then kill the fire-head. Use your ice rod and keep hitting him, (while doing this try and avoid the rock-head, it will try to stretch out its head and hit you). Keep hitting the fire head until it to blows up.
the rock head will then start slithering around, hit him in the red part of his body with the sword until he dies.
(the fire and ice rod takes up magic medicine, to get more you can collect the medicine when the fire-head breathes out fire,(it occasionally will give you medicine.)
now for the items (these are not all in order):
1. get sword and shield: find your uncle in hyrule castle, he will give them to you.
2.master sword: get three pendants and find it in the lost woods.
3.tempered sword: find the frog near the shooting shop in the dark world and take it to the sword smiths shop in the light world, they will temper your sword.
4.gold sword: get a super bomb after defeating palace 5 and 6 in the dark world at the bomb shop.go to the pyrimid of power in the dark world and blow up the huge crack there, throw in your sword in the pond to get the gold sword.
5.red shield

ay 500 rupees at a shop in the dark world to buy the red shield.
6. mirror shield: find it in turtle rock palace in the dark world, after getting the big key in the palace(it is in the big chest.)
7. bottle 1: buy from the man in kakario village.
bottle 2: go through the back of the bar in kakario village.
bottle 3:keep going left towards the bridge of lake hylia, south of hyrule castle, see a man sleeping near a tent? talk to him and get a bottle.
bottle 4: in the dark world, take a blue chest , (you should find it in the broken house where the swordsmith's were) carry it into the swamp of evil and use the mirror to go into the light world. you should see a man sitting down lonely, talk to him and he will open the chest and give you the bottle.
ice rod: in the cave south east of hyrule castle, (near the corner of the map), blow up a crack in the wall near the cave and inside is the ice rod.it is in the light world.
fire rod: in skull woods palace, in the dark world, it is in the big chest which needs to be opened with the big key of the palace.
cape: in the grave yard, run into one of the graves and inside will be the cape. (i think its the grave on the far right.)
ether medallion:in the dark world, on death moutain go past ganons tower to the left and use the book of madora on the stone to get the ether medallion.
bombos medallion: go to the end of the swamp of evil in the dark world and use the mirror to get into the light world. you should be on higher ground if you transported in the right place, read the book of madora on the stone to get the bombos medallion
cane of sumaria:in misery mire, use the big key of the dungeon on the big chest in misery mire to get the cane of sumaria.
cane of bryna: on death moutain, drop down from the top(where there isnt a boundary to stop you, and go into the cave that you drop infront of, use the cape to get past the spikes and at the end of the cave you will find the cane of bryna.
magic mirror:in the light world, on death mountain save the old man you meat there and when youve brought him to his home on the higher level of death moutain he will give you the magic mirror.
lantern: you should find it in a chest in your house when you first start the game.
hammer: in the darkness palace, find the big key of the palce and open the big chest in the palace to get the hammer.it is in the dark world.
hookshot:in the swamp palace,in the dark world.find the big key in the palace and open the big chest in the palace to get the hookshot.
zora flippers: at the tip of lake hylia, talk to the king zora there to get the flippers(somwhere around the east of hyrule castle in the light world.
power glove: in the second palace in the light world, get the big key of the palace and open the big chest to get the power glove.
titans mitt: in the thieves town palace in the dark world. get the big key of the palace and open the big chest in the palace to get the titans mitt.
quake medallion: throw a skull shaped rock into a circle of rocks floating in the lake.it is located east of the ice palace, when you throw it in, a monster will come out and give you the quake medallion. it is in the dark world.
moons pearl: in the death mountain palace in the light world, get the big key in the palace abd open the big chest in the palace to get the moons pearl.
boomerang, found in the light world, in hyrule castle.
magic boomerang:throw your boomerang into a magic pond to get the magic boomerang.
mushroom:found in lost woods in the light world.
magic powder:give the mushroom the the witch in the light world and go into the shop to find magic powder sitting beside het assisstant.
flute and shovel: go to the dark world and talk to the thing sitting on the stump. he will give you the shovel. then go to the light world and dig around the area with the shovel to find the flute.
bug catching net: talk to the boy lying in bed in kakario village in the light world, he will give you the bug catching net.
book of madora: found in the libary in the light world in kakario village, ram into the shelves with the pegases boots to get the book.
pegasus boots:found in a cave near the second palace, the old man there will give it to you after you defeat the second palace.
blue mail: found in the ice palace in the dark world, get the big key of the palace and open the big chest in the palace to get the blue mail.
red mail: in the dark world, in ganon's tower get the big key and open the big chest to get the red mail.
bombs: buy bombs anywhere in shops to gain acsess to them.
arrows: find the bow in the first palace to to gain acsess to arrows.
silver arrows: where you got the gold sword, but instead of throwing your sword into the pool, throw your bow.
green mail: these are given to you as soon as you start.