To obtain the **Shadow Mantle** in Deltarune Chapter 3, you must achieve **S-rank** on both of Tenna’s minigame boards and unlock their hidden variants. This grants access to secret dungeons and an intense boss fight, which ultimately rewards the mantle and sets up Chapter 3’s true finale.
Step 1: S-Rank Both Minigame Boards
- Earn **S Rank** on both TV-themed minigames tied to Tenna.
- A green room’s “S-Rank Door” will unlock once completed.
- While some players claim bribing can skip this step, success isn’t guaranteed.
Step 2: Access the S-Rank Door
- Enter the green room’s newly unlocked door to encounter **three unique dungeon variants**.
- Each variant features twisted, more aggressive iterations of the original games.
Step 3: Conquer the Minigame Challenges
- Game 1: Level up, then break through trees in the top-right forest to find the **Ice Key** in a chest.
- Game 2: Use the Ice Key in the snowy raft area. An NPC ally will help freeze enemies for puzzles, leading to another key.
- Game 3: Unlock the final minigame, including a boss battle where attacking Susie and Ralsei has unclear consequences.
Step 4: Overcome the Boss
- This fast-paced boss employs tricky attacks:
- Dodge **orange orbs** aggressively.
- Strike when it deploys bombs.
- Prioritize clearing minions for health drops.
- In the final phase, target the **black form** while avoiding meteors.
Victory grants the **Shadow Mantle**, a defensive item that reduces damage and unlocks further secrets.
Step 5: Challenge the Roaring Knight (Optional)
- With the Shadow Mantle equipped, a hidden phase triggers during the Roaring Knight fight.
- Defeating it yields the **Shadow Crystal** and **Black Shard** for Kris.
- Even with the mantle, this fight remains extremely difficult.
FAQ
- Q: Can you skip S ranks for the Shadow Mantle?
No—both boards require S ranks to progress. - Q: Is the boss fight a single attempt?
No—Gaster allows retries after failure. - Q: Is the Roaring Knight the secret boss?
Yes, it’s Chapter 3’s ultimate challenge with the mantle equipped. - Q: What’s the Shadow Mantle’s effect?
Reduces damage and may influence future chapter events.