Undertale Yellow Ceroba Fight

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Undertale Yellow Ceroba Ketsukane Fight | The Ultimate Pacifist Test

Released:October 21, 2025

Alternate universe Undertale

🎮 Controls: Arrow keys to move (hold X for slow soul), Z to select, X to unselect.

👨‍💻 Created by dino7597 on Scratch.

Ceroba Ketsukane, the Kitsune monster, in her battle stance

The Ceroba Ketsukane Fight is the final boss of the Pacifist Route in Undertale Yellow. A powerful Kitsune (Fox) monster, she is consumed by grief over her late husband and the disappearance of her daughter Kanako. This battle is the emotional core of Undertale Yellow, demanding that Clover's 'Justice' SOUL must demonstrate empathy and forgiveness to heal a shattered soul, rather than overpowering her with force.

Ceroba Battle Guide: Kitsune's Vengeance

Ceroba's combat style in Undertale Yellow draws heavily from Japanese folklore—fast-paced, high-density, and highly thematic. It's a relentless test of the player's skill and emotional commitment. Her actions are driven by love and desperation, as she attempts to sacrifice Clover's SOUL to complete her plan and 'save' Monsterkind.

Attack Pattern: The Kitsune Dance

Upon transforming into Kitsune Ceroba in Undertale Yellow, her magical abilities intensify dramatically. Her attacks are a fast-paced, high-density blend of fire, magic, and Eastern mythological flair, requiring mastery of the Blue/Orange mechanics:

•Talisman Fire: She launches large, stylized talismans and tracking fireballs that mimic fox-fire. These attacks heavily feature the Blue/Orange mechanic, forcing the player to rapidly alternate between moving and stopping. This pattern is signature to Undertale Yellow's advanced combat.
•Spinning Masks & Pillars: Ceroba summons rotating fox masks that often lead the player into traps, or creates sweeping pillars of fire that segment the bullet box, demanding precise pathfinding.
•Full-Screen Barrages: Some attacks fill the entire screen with dense, complex danmaku patterns that require absolute concentration and strategic use of the DASH ability for last-second evasion.
•Rapid Movement Phases: The battle includes phases where the pace is relentless and fast, with attacks coming from multiple directions to test the player's endurance and quick reflexes.

Winning Strategy: The Ultimate ACT

The final stage of the Pacifist route demands sustained dodging combined with emotional breakthrough via ACT:

•'Soothe' / 'Encourage': Repeatedly engaging Ceroba with these emotional ACT options is necessary to wear down her resolve and advance the narrative. This emotional approach is central to Undertale Yellow's storytelling.
•Final Forgiveness: Once her determination is exhausted, the player must MERCY her, allowing her to finally let go of the burden of revenge and complete the Pacifist ending.

Kitsune Ceroba Fight gameplay screenshot showing fire and talisman attacks

Comments

Prove True Justice. Achieve the MERCY End.

Begin the Battle!

Undertale Yellow Ceroba Fight

Undertale Yellow Ceroba Ketsukane Fight | The Ultimate Pacifist Test

Game Overview

Ceroba Battle Guide: Kitsune's Vengeance

Prove True Justice. Achieve the MERCY End.