How to Get the Rusted Bunker Key in Fisch Guide

The Rusted Bunker Key is a required quest item in Fisch that unlocks the mysterious bunker on Birch Key. Without it, you won’t be able to access Carbon’s questline or obtain the exclusive Cheeto Rod. Although the game provides a clue about the key’s location, it doesn’t tell you exactly where to look, making it easy to miss. This guide explains where to find the Rusted Bunker Key and how to use it to continue the quest.

What Is the Rusted Bunker Key Used For?

The Rusted Bunker Key is used to open the locked bunker on Birch Key. Inside the bunker, you’ll meet Carbon, who gives you the Carbon’s Snack Emergency quest. Completing this quest rewards you with the collectible Cheeto Rod.

How to Start the Quest

Your journey begins at Birch Key, where you’ll find a locked bunker. When you interact with the bunker door, you’ll receive a message saying it needs a key. Nearby, there’s a note with the following clue:

“Gone fishing, left the key with the turtles.”

This hint points you toward the next destination.

Where to Find the Rusted Bunker Key

The Rusted Bunker Key is located on Terrapin Island. Many older videos and guides may tell you to search near a boat on the island. However, the key was moved, so that location is no longer correct. Instead, follow these steps:

• Travel to Terrapin Island.
• Climb onto the giant turtle’s head.
• Walk to the edge of the turtle’s head.
• Look for the Rusted Bunker Key resting on the ground.
• Interact with it to add it to your inventory.

Once you’ve picked up the key, you’re ready to return to Birch Key.

How to Open the Bunker

With the Rusted Bunker Key in your inventory:

1. Return to the locked bunker on Birch Key.
2. Interact with the bunker entrance.
3. The door will unlock automatically.
4. You’ll be teleported inside the bunker.

Inside, you’ll meet Carbon, who starts the next part of the questline involving the hidden Bag of Chips.

What to Do After Getting the Key

Finding the Rusted Bunker Key is only the first step toward unlocking the Cheeto Rod. After entering the bunker, you’ll need to:

• Talk to Carbon.
• Accept Carbon’s Snack Emergency.
• Locate the hidden Bag of Chips inside the bunker.
• Return the chips to Carbon.
• Receive the Cheeto Rod as your reward.

Why Can’t I Find the Rusted Bunker Key?

If the key isn’t where you expected, you’re probably following an outdated guide.

Recent quest updates moved the Rusted Bunker Key from its previous location near the boat to the top of Terrapin Island’s turtle head. Checking the old spot won’t reward you with the quest item anymore.

The Rusted Bunker Key is a small but essential item in Fisch’s Cheeto Rod questline. While the clue hints that it’s hidden “with the turtles,” the exact location isn’t immediately obvious unless you know to climb onto Terrapin Island’s giant turtle head. After collecting the key and unlocking the bunker, you’ll be able to continue Carbon’s quest and work toward earning one of the game’s most memorable collectible fishing rods.