Octopath Traveller 2: How To Fight The Secret Super Boss | Unlocking ??? Island Guide

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There’s a dark presence haunting the world of Octopath Traveller 2, and you can fight it — if you dare. The most difficult enemy is totally optional and hidden behind a series of seemingly unconnected side-quests. If you’ve fully explored the Sundering Sea area, you probably found a strange area called ??? Island. There’s a mysterious wall here with unreadable text. By completing three quests, you’ll help an explorer find a cursed text, decipher it, and unlock the gates to the netherworld. Learn how to complete all the steps below.

The boss itself is incredibly difficult. You’ll need a uniquely built party just to survive the first rounds. I recommend waiting until you’ve completed all eight stories and earned the true ending before even attempting this goliath. You’ll need all the levels you can get — and all the Advanced Jobs maxed out. We won’t get into how to defeat the boss here, just how to fight him. Goodluck with that.

More Octopath Traveler 2 guides:

All 8 Standard Job Altars | Inventor Advanced Job Guide | Unlocking All Inventor Skills | Armsmaster Advanced Job Guide | Arcanist Advanced Job Guide | Conjurer Advanced Job Guide | Secondary Job Guild Locations | Best Weapons You Can Find Early | How To Unlock The Ship & Sea Region | Best Character Skill Synergies | Best Weapons To Get Early | Scent of Commerce Quests Guide | Bottled Nightmare Trick | Secret Sunshadow Staff | Ultimate End-Game Weapon Locations | Infernal Castle Secret Dungeon Location

To fight Galdera and unlock the Gate to the Netherworld, you must follow a series of complex steps — these steps begin very early in the game, and lead directly to a mysterious island in the Sundering Sea called ??? Island. Here’s a full rundown of every step