Sub-Weapons are items that each serve a specific purpose. Most Sub-Weapons permanently stay in your possession after you’ve obtained them, but a few are limited to the Scenarios they are found in, or have limited uses during a battle. Here is a list of all six Sub-Weapons and how to obtain them.
Bombs
Bombs are used to destroy boulders, cracked walls, and Beamos statues, and are the item used to reveal King Dodongo’s Weak Point Mark. Picking up the Bombs power-up will transform the Bombs into one gigantic Bomb, which is excellent for clearing Keeps and large groups of enemies. This Sub-Weapon can be found in Scenario 1 of Legend Mode.
Bow
The Bow is used to defeat Deku Babas and is also the weakness of the Gohma. If you shoot an enemy with this Sub-Weapon, it will stun them momentarily. Picking up the power-up for the Bow will make it fire Light Arrows, which stun enemies for a longer time and split into multiple arrows to hit more enemies. You can find the Bow in Scenario 3 of Legend Mode.
Boomerang
The Boomerang is used to cut down Walls of Vines and is the item used to reveal the Manhandla’s Weak Point Mark. It can also dizzy enemies, stunning them for even longer than the Bow. When you grab the Boomerang power-up, it temporarily turns the Boomerang into the Gale Boomerang, which creates small tornadoes on the field when you throw it. This Sub-Weapon can be found in Scenario 4 of Legend Mode.
Hookshot
The Hookshot is used to pull you to new heights on Scenarios with strange-looking plaques, which almost exclusively contain Gold Skulltulas. It is also the item needed to reveal the Argorok’s Weak Point Mark. You can find the Hookshot in Scenario 6, Palace of Twilight.
Potion
The Potion is used to heal ten of your current Warrior’s Hearts during a battle. You can purchase Badges from the Badge Market to increase the number of times you can use this Sub-Weapon and how much it heals you Warrior. This item is obtained during the tutorial at the beginning of the game.
Fairies
Fairies are used to dispel Barriers in Adventure Mode Scenarios. Barriers have one of several different elements and entering a Barrier before dispelling it means constant damage for your Warrior as long as you are standing inside it. To dispel a Barrier, you need a Fairy of the same element, unless it’s a Barrier of Light or Darkness (you need to use a Fairy of Light on a Barrier of Darkness, and vice versa). Fairies are found only in Adventure Mode, as are Barriers.