The Legend of Zelda: Twilight Princess

Unlockables

• Bomb Bag Upgrades

  There are 3 bomb bags to obtain and 1 capacity upgrade that affects all 3 bags.
  

  Unlockable	How to Unlock
  Bomb Bag 1	Purchace from Barnes Bomb Shop in Kakariko after 2nd temple.
  Bomb Bag 2	Free the goron from the giant lava rock located underwater in zoras domain.
  Bomb Bag 3	Destroy the rock barriers for the River Canoe mini-game owner.
  Bomb Bag Capacity Upgrade (Double)	Score 25 points or more on the River Canoe Mini-Game.

• Bottle: Fishing Hole

  Go to the fishing hole, and find the sign that says: No Littering! You can get a bottle if you fish on the right side of the bridge that is near that sign. Its darker water than normal.
  

• Fairies

  After locating the Gerudo Mesa and Cave of Ordeals in the Gerudo desert, you are able to unlock fairies and later Great Fairies at each spring around Hyrule. Smaller fairies can be bottled, restore 8 hearts when used, or when you run out of hearts. Great Fairies will give you a bottle full of Great Fairy Tears, which heal you full and temporarily boost your attack, provided you have an empty bottle and no Tears in your inventory already.
  Both have an infinite supply once unlocked.
  

  Unlockable	How to Unlock
  Fairies in the Eldin Spring	Complete 30 rooms in the Cave of Ordeals
  Fairies in the Faron Spring	Complete 20 rooms in the Cave of Ordeals
  Fairies in the Lanayru Spring	Complete 40 rooms in the Cave of Ordeals
  Fairies in the Ordon Spring	Complete 10 rooms in the Cave of Ordeals
  Great Fairies in all springs	Complete 50 rooms in the Cave of Ordeals

• Malo Mart-Castle Branch and Magic Armor

  After donating 1000 rupees and completing the hot springwater sidequest, donate 200 more rupees to Malo Mart. A new Malo Mart will open in Castle Town and magic armor will be available for purchase there. The amount owed can be reduced (see Secrets section below).
  

• Poe Rewards

  You can unlock certain rewards for returning Poes back to Jiovani.
  

  Unlockable	How to Unlock
  200 Rupees (talk to him again for another 200)	Bring back 60 Poe Souls to Jiovani.
  Bottle W/ Fairy Tears	Bring back 20 Poe Souls to Jiovani.

• Quiver Upgrades

  To upgrade you arrow capacity, you need to play the "STAR" game located in the large tent in Southeast Hyrule Castle Town.
  

  Unlockable	How to Unlock
  Big Quiver (60 Arrows)	Beat "STAR" game lvl. 1. (Clawshot Required)
  Giant Quiver (100 Arrows)	Beat "STAR" game lvl. 2 .(Double Clawshot Required)

• Unlocking the frog lure

  To unlock the frog lure, beat all the levels of rollgoal in the fishing hut at Upper Zora's River. To play, look around for a little board and when you see at, press up on the C-Stick and look directly at it for a second. She'll ask you to play for 5 rupees.
  

  Unlockable	How to Unlock
  Frog lure	Beat 8 levels of Rollgoal

• Wallet Upgrades

  To upgrade your wallet size to carry more rupees, you need to catch Golden bugs for Agatha in Hyrule Castle Town.
  

  Unlockable	How to Unlock
  Big Wallet	Give Agatha 1 Golden Bug
  Giant Wallet	Give Agatha all 24 Golden Bugs

Easter Eggs

• Control a Cucco!

  Unlike other Zelda games (where you got attacked if you hit the Cuccos), in Twilight Princess if you hit a Cucco about 8 times, you'll be able to control it for a short period of time.
  

Secrets

• Distract the final boss

  In the final boss battle, cast the fishing rod to distract him and get in a few easy hits.
  

• Donation Reduction

  Donate 1000 rupees to Goron inside the Malo Mart in Kakariko Village (you must progress past the third dungeon beforehand). Talk to the old Goron outside the shop and complete the quest he offers. Once completed, the second donation amount will be reduced from 2000 to 200 rupees.
  

• Easily discover Heart Pieces

  To easily find the locations of all Heart Pieces, go to Fanadi's Palace in Hyrule Castle Town and pay her 10 Rupees for a Love fortune. You will then see an area in the game that will contain a Heart Piece around it, obtainable in some fashion. You can keep paying her to show you other locations, but she will sometimes repeat the same location a few times over.

• Worms for fishing

  If you go into the fishing hole behind the sign at the very entrance there will 3 little mounds of dirt.
  Turn into the wolf and dig these up, earth worms will appear, scoop them up in an empty bottle and use them as bait for your fishing hook to make fishing extra easy!
  

Enemy/Boss Tips

Defeat unarmored Darknuts without using Hidden Skills

L-target and perform four sword thrusts by tilting up on the control stick and pressing B. Make sure to leave enough room so only the fourth thrust connects. The Darknut will then swing its sword twice; immediately after the second swing, perform a Jump Slash on the Darknut. This will cause the Darknut to raise its sword in the air, leaving you free to attack it.