How do I complete the "The Thunder Helm" side quest in The Legend of Zelda: Breath of the Wild?

To complete "The Thunder Helm" side quest in The Legend of Zelda: Breath of the Wild, you must help the Gerudo people in Gerudo Town by completing several smaller quests. This quest is given by Riju, the leader of the Gerudo, after you have freed the Divine Beast Vah Naboris. The Thunder Helm is a powerful piece of headgear that grants immunity to lightning, making it highly valuable for exploring areas with frequent thunderstorms or fighting enemies that use electric attacks.

First, you need to speak with Riju in the throne room of Gerudo Town. She will explain that the Thunder Helm is a sacred relic of the Gerudo, but it is currently being used to protect the town from the Yiga Clan. She will ask you to help the Gerudo people with their problems, and once you have done so, she will consider lending you the Thunder Helm.

There are four main quests you need to complete to gain access to the Thunder Helm. These quests are given by different NPCs in Gerudo Town, and each one addresses a specific issue the townspeople are facing. The quests are "The Search for Barta," "Medicinal Molduga," "The Mystery Polluter," and "The Eighth Heroine."

The first quest, "The Search for Barta," is given by Dalia, who is worried about her friend Barta. Barta has gone missing while searching for a rare treasure in the desert. To find her, you need to head to the East Barrens, where you will encounter a Molduga, a large sand-dwelling creature. Defeating the Molduga is not necessary for this quest, but you can do so if you wish. Barta is hiding in a cave near the Molduga's territory. Speak to her, and she will return to Gerudo Town. Report back to Dalia to complete the quest.

The second quest, "Medicinal Molduga," is given by Malena, who is suffering from an illness and needs Molduga Guts to make medicine. To obtain Molduga Guts, you must defeat a Molduga. Moldugas are tough enemies, so it is recommended to prepare with strong weapons, armor, and healing items. Use bombs to lure the Molduga out of the sand, and then attack its weak points when it surfaces. Once you have the Molduga Guts, return to Malena to complete the quest.

The third quest, "The Mystery Polluter," is given by Liana, who is concerned about the water supply in Gerudo Town being polluted. Investigate the water source to the north of the town, where you will find a group of Octoroks. Defeat the Octoroks to clear the pollution, then return to Liana to complete the quest.

The fourth quest, "The Eighth Heroine," is given by Bozai, who is obsessed with the legend of the Eighth Heroine. He will ask you to find the missing statue of the Eighth Heroine in the Gerudo Highlands. The statue is located in the northern part of the highlands, near the Gerudo Summit. Once you find the statue, take a picture of it and show it to Bozai to complete the quest.

After completing all four quests, return to Riju in the throne room. She will be impressed by your efforts and will allow you to borrow the Thunder Helm. The Thunder Helm is a powerful item that provides immunity to lightning, making it extremely useful in areas with frequent thunderstorms or when facing electric-based enemies.

Some important tips and considerations for completing these quests include preparing adequately for combat, especially when facing Moldugas. Make sure to have plenty of healing items, strong weapons, and armor. Additionally, using stealth can be helpful when dealing with Octoroks in "The Mystery Polluter" quest. For "The Eighth Heroine" quest, having the Sheikah Sensor upgraded to detect treasure chests can help you locate the statue more easily.

Common mistakes to avoid include not preparing enough for the Molduga fight, which can be challenging if you are not well-equipped. Another mistake is not thoroughly exploring the Gerudo Highlands for the Eighth Heroine statue, as it can be easy to miss if you are not paying attention.

Advanced techniques or optimizations include using the environment to your advantage, such as using high ground to avoid Molduga attacks or using elemental arrows to deal extra damage. Additionally, using the Sheikah Sensor to track down the Eighth Heroine statue can save time.

Required items and preparation include strong weapons, armor, healing items, and possibly elemental arrows. Having the Sheikah Sensor upgraded to detect treasure chests can also be beneficial.

Alternative approaches include using different strategies for defeating Moldugas, such as using remote bombs to lure them out of the sand or using Urbosa's Fury if you have unlocked it. For the Octoroks in "The Mystery Polluter" quest, using stealth or long-range weapons can make the encounter easier.

Specific examples and scenarios include the Molduga fight in "Medicinal Molduga," where you can use bombs to lure the Molduga out of the sand and then attack its weak points. In "The Eighth Heroine" quest, you can use the Sheikah Sensor to locate the statue more efficiently.

By following these steps and tips, you will be able to complete "The Thunder Helm" side quest and gain access to this powerful piece of equipment.