In simpler terms, Deltarune is an widely enjoyed adventure game that allows players to traverse a mystifying realm while engaging in combat. The recently introduced Chapter 3 offers an abundance of secrets beyond one’s wildest imagination.
One hidden treasure you’ll discover in this game is the elusive Shadow Mantle, a secret mini-boss. However, locating the Shadow Mantle within Deltarune can be quite challenging as it requires solving numerous puzzles to access him. If you’re up for the challenge, here is an all-inclusive guide on uncovering the secret boss fight against the Shadow Mantle in Deltarune and strategies to defeat him.
How To Find Shadow Mantle Secret Boss
In the game Deltarune, the secret boss Shadow Mantle can only be encountered after successfully completing a sequence of puzzles. To do this, you must first earn an S rank on all Tenna’s Boards. Once you achieve an S rank on each board, the S Rank Door will open, giving you access to play various minigames. Each time you play these minigames, they will be unique, and you’ll encounter the Shadow Mantle for the first time during your third playthrough.
How to Get S Rank On the First Board
To achieve the S Rank on Tenna’s initial Board, you need to collect all four keys and excel in the cooking mini-game. Once completed, proceed to the S Rank Door and enter it. If you move to the left, you’ll encounter an NPC who will grant you access to the backstage area. There, you’ll discover another mini-game.
Play The First Console Minigame
Engage with the game board, and when it displays “No Controller,” proceed to move toward the right part of the room. There, locate the controller that’s resting on the floor and grab it. Make your way back to the minigame. Now, you can initiate the minigame, where you can increase your level by defeating opponents. Upon reaching level 3, advance towards the right section of the map and chop down the cacti.
After you’ve cleared away the cacti, proceed to discover a fresh location. Eliminate all the adversaries and then make your way back towards the woods. Continue to fell every tree until you stumble upon a red treasure chest. Once found, retrieve the Ice Key from within it.
How to Get S Rank On the Second Board
Once you finish the mini-game, return to Tenna’s second game board. To earn an S Rank here, similar to the first board, gather all four photos, consume moss, and excel in the concert mini-game. Upon completion, locate the S Rank Door once more, which will bring you back to the spot where the initial console minigame was played.
Play The Second Console Minigame
In the next round of this captivating minigame, I found myself in familiar territory yet intrigued by subtle differences. Early on, I discovered a secret passage, a hole in the wall, that granted me access to the sword earlier than usual. This powerful weapon proved instrumental in vanquishing my adversaries. Upon reaching level 2, I was advised to venture rightward, and there, nestled by the water’s edge, I found a raft. I eagerly hopped aboard and set sail upstream, ready for the adventure that lay ahead.
Eventually, you’ll come across a location where there’s a distinctive blue door. Earlier, you were given an Ice Key, use it to unlock this door. Once opened, it leads into a dungeon filled with adversaries you need to defeat in order to reach the highest level. In time, you will eventually find yourself in a room at the top of the dungeon, which has two trees standing tall. After you’ve felled these trees, move to the left and discover the room adorned by a White Cloak.
In your upcoming battle, the White Cloak will accompany you. Now, your attacks can cause enemies to freeze. Keep pushing forward, and soon enough, you’ll find yourself in a labyrinth. To navigate through it, follow any path that the White Cloak guides you on. If it remains behind, you’re off course. By doing so, you’ll emerge from the maze and reach a room containing the Shelter Key. Pick up the Shelter Key, and the minigame will conclude.
Return To The Green Room And Play The Final Minigame
After a while, you’ll need to revisit the Green Room once everyone, including Tenna and the staff, has departed. Then, you’ll have the freedom to explore at your leisure as it begins to snow in the Green Room. Now, pass through the S Rank Door once more to engage in the third and concluding minigame.
This time, Susie and Ralsei will join you in your journey, and rest assured, you’ll discover the sword eventually. Since there are no threats around, you can increase your power by practicing on Susie and Ralsei. As you advance deeper into the city, you’ll come across a blockade that can be shattered. Once you’ve broken it, take the alley to your right until you reach the manhole.
Susie and Ralsei will accompany you on this occasion, ensuring you’ll find the sword in due time. As there are no foes present, you can enhance your abilities by sparring with Susie and Ralsei. Moving forward within the city, you will stumble upon a barricade that can be demolished. After breaking it, navigate the alley on your right until you arrive at the manhole.
How to Find Shadow Mantle Secret Boss
Later on, you’ll encounter NPC Toriel, who will guide you to a safe haven called the Shelter. You can open the shelter using the key you picked up earlier. Continue your journey within the shelter until you come across the Secret Boss, known as Shadow Mantle.
How To Beat Shadow Mantle Secret Boss in Deltarune
To conquer the elusive Shadow Mantle secret boss successfully, it’s essential to have a robust strategy at hand, as this foe can be quite cunning. The boss goes through four distinct stages and employs four different tactics.
| Attack | Effect | How To Beat |
|---|---|---|
| Bomb Attack | Throws a number of bombs, which explode in straight vertical and horizontal lines. | Stand at an angle from the bombs and you’ll be fine. |
| Fireball Attack | Throws fireballs randomly. | Keep your distance and focus on dodging rather than attacking. |
| Meteor Attack | Throws meteors across the screen from top to bottom. | Go to the bottom of the screen and dodge left and right. |
| Friend Attack | Summons lots of enemies. | You can just one-shot each of the enemies and heal back up with the items they drop if your health is low. |
As you advance through the stages, the assaults grow stronger and more frequent. Initially, they’ll happen closer together and be repeated several times consecutively. In the final stage, the boss will upgrade each attack. Yet, the strategies for dodging them stay consistent.
Reward For Beating Shadow Mantle in Deltarune
To obtain the Shadow Mantle Armor in Deltarune, you must successfully defeat the Shadow Mantle boss. Following this battle, a treasure chest will appear which requires you to venture off-screen and then re-enter with your genuine character, Kris, to unlock it. Inside the chest lies the Shadow Mantle.
In Deltarune Chapter 3, the Shadow Mantle is an essential item that you can put on any of your characters to enhance their stats. This key item is crucial for defeating the Roaring Knight Secret Boss.
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2025-06-07 08:04