L-1 Sword - The first Sword you get in the game, quite powerful.
L-2 Sword - An Upgrade of the L-1, A lot stronger and at full health you can shoot power out of it!

L-1 Shield - First Shield, protects you from attacks.
L-2 Shield - Just an upgrade really, bit more powerfull.

Hookshot - used for getting over holes and water, to get to the other side.

L-1 Power Bracelet - Used for picking up rocks etc.
L-2 Power Bracelet - Can pick up even heavier objects.

Bombs - Useful for blowing up cracks in the walls, not the best item to use on enemies.

Boomerang - Destroys enemies from a distance.

Pegusus Boots - Makes you run faster!

Feather - Makes you jump.

Fire Rod - Used for melting ice and destroying enemies.

Bow and Arrow - good for long distances.

Ocarina - 3 tunes to play on your cool instrument.

Magic Dust - Handy for final Boss, and for lighting up the areas.

Spade - Used for digging.