Suro Senen
By Laurence Wall
Published June 25, 2026
The world of Deltarune has always been defined by its cryptic charm, hidden layers, and the signature, offbeat humor of creator Toby Fox. As players delve into the highly anticipated Deltarune Chapter 5, they are once again faced with a series of intricate environmental puzzles that demand both keen observation and a willingness to explore the bizarre. Among the most discussed challenges in the early stages of the chapter is the elusive "Fox Puzzle," a multi-stage scavenger hunt hidden within the castle’s fox-themed chambers. While the main narrative path requires only a cursory interaction with these hidden creatures, the true completionists know that the locked door adorned with five fox symbols holds a deeper secret.
For those looking to peel back the curtain on this mystery, this guide provides a step-by-step breakdown of how to locate every fox, unlock the hidden door, and secure the rare rewards required to confront the game’s latest hidden challenges.
The Main Facts: Understanding the Fox Chamber
Upon entering the castle for the first time, players will find themselves navigating a series of ornate rooms. Located just north of the central Café area, there lies a unique chamber dedicated entirely to fox-themed imagery. This area serves as a hub for one of the chapter’s most rewarding side quests.
The primary objective for the casual player is to interact with three of these hidden foxes, which effectively clears the path for the main storyline. However, the game presents a subtle invitation to the observant: a large, imposing door on the far left of the room, marked with the silhouettes of five distinct foxes. It is here that the challenge truly begins. To bypass this barrier, one must track down all five hidden entities, a task that requires navigating through projectiles, manipulating environmental statues, and interacting with the game’s perspective-shifting mechanics.
A Chronological Walkthrough: Locating the Five Foxes
The following steps detail the precise locations and methods for uncovering each of the five foxes. We recommend completing these in order to ensure you maintain your orientation within the complex layout of the castle’s north wing.
The First Fox: The Deceptive Projectile
The first fox is arguably the most clever, as it hides in plain sight within a hazard-filled corridor. As you enter the main fox chamber, head directly to the right. You will encounter a series of paw-shaped projectiles rhythmically rising and falling. After reaching the end of the path and claiming your item chest, turn back. Pay close attention to the gaps in the wall as you traverse the path. One of these "projectiles" is, in fact, the first fox in disguise. By intentionally positioning yourself to collide with this specific projectile, the illusion will break, and the fox will be collected.
The Second Fox: The Statue Room Chase
Once you have obtained the first fox, head to the room directly in front of the main entrance. You will find yourself on a spacious platform populated by numerous plant-warrior statues. The second fox is located here, but it is elusive. You must approach it to initiate a short chase sequence. The fox will move to the top-left corner of the room, followed by the top-right. Once you have successfully "herded" it, the fox will return to its original starting point and exit the area, adding it to your tally.
The Third Fox: The White Screen Mystery
The third fox is tucked away in the room to the northeast. Upon entering, you will notice a large, static white screen with shadowy figures bouncing behind it. To reveal the fox, interact with the control button in the room to raise the screen. Once the screen is lifted, walk behind the partition. You will need to methodically clear away the bouncing objects one by one. The third fox is hidden among these shadows; keep interacting with the objects until it is revealed.
The Fourth Fox: The Hidden Doorway
Returning to the central statue room, turn your attention to the northwest quadrant. You will notice a specific statue that looks slightly out of place. By pushing this statue aside, you will reveal a hidden doorway that was previously obscured. Enter this secret passage, and you will find yourself in a small, isolated space. Simply interact with the glowing screen located here to claim the fourth fox.
The Fifth Fox: The Southeast Secret
The final fox is also located within the main statue room, requiring a bit of manual labor. Head to the far southeast corner of the platform. Here, you will find a cluster of statues blocking your path. Much like the previous step, you must push these statues off the platform to create a clear path to the fox’s hiding spot. Once the area is cleared, the final fox will appear, bringing your collection to five.
Supporting Data: The Value of the Pink Coin
Having successfully gathered all five foxes, you may now approach the large, marked door on the far left. Upon opening it, you will be rewarded with a chest containing a "Pink Coin." While a single Pink Coin may seem like a simple trinket, it is a critical piece of the puzzle for players aiming to experience the full breadth of Deltarune Chapter 5.
To unlock the chapter’s secret boss, you must amass a total of 10 Pink Coins. These are scattered throughout various side quests and hidden locations within the castle. Once you have acquired 10, head to the shop located on the Cliffs. Here, you can exchange your collection for a "Mystery Key." This item is the master key required to unlock the chamber housing the secret boss—a tradition in the Deltarune series that dates back to the Jevil fight in Chapter 1 and the Spamton NEO encounter in Chapter 2.
Official Context and Developer Intent
Toby Fox has long utilized these hidden, high-difficulty bosses to reward players who engage deeply with the world-building and environmental storytelling of his games. While official statements from the developer are notoriously cryptic, the inclusion of the "Pink Coin" system suggests a deliberate effort to pace player progression. By gatekeeping the secret boss behind these collectibles, the game ensures that players are familiar with the unique mechanics of the chapter—such as the perspective-shifting and environmental manipulation—before they face the significantly more difficult secret encounter.
Implications for the Player
The implications of this quest are twofold. First, it serves as a tutorial for the unconventional interaction styles required in later, more complex areas of the game. Second, the hunt for the five foxes and the subsequent collection of Pink Coins fundamentally changes how a player experiences the castle. Instead of merely rushing toward the next story beat, the player is forced to slow down, observe the environment, and appreciate the level design.
For those struggling with the secret boss, the process of finding these coins is also an excellent opportunity to grind for items and experience. The Deltarune community has already begun documenting the locations of the remaining coins, and it is highly likely that this quest is just the tip of the iceberg regarding the secrets hidden within the latest installment of the franchise.
As players continue to explore the depths of the castle and beyond, the search for these hidden rewards serves as a reminder of what makes the Deltarune experience so compelling: the sense that there is always something more to find, always a deeper mystery beneath the surface, and always a rewarding challenge waiting for those willing to look a little closer. Whether you are a newcomer to the series or a veteran of the Undertale universe, the path to the secret boss is a journey well worth taking.
Raul Delapena Setiawan
