All Deltarune Chapter 5 Endings Explained

Deltarune presents multiple narrative paths that significantly alter the story’s progression. Similar to earlier chapters, Chapter 5 also features branching routes that range from a standard main story to an optional secret boss challenge and a heavily altered alternate storyline known as the Weird Route.

Each path changes key events, tone, and outcomes, making the chapter one of the most route-diverse chapters in the game so far. In total, there are three major endings in Chapter 5: the Normal Ending, the Secret Boss Ending, and the Weird Route Ending.

How to Get the Normal Ending in Deltarune Chapter 5

Credits: tobyfox

Credits: tobyfox

Credits: tobyfox

Credits: tobyfox

The Normal Ending begins when Chapter 5 is started without carrying over a Weird Route save from Chapter 4. This route follows the intended story path, starting with Kris leaving home, attending Castle Town’s festival preparations, and progressing into the Flower Kingdom Dark World created inside Asgore’s Flower King shop.

The key divergence is simply choosing to play the chapter normally, without triggering alternate route conditions. Players naturally proceed through the festival, lake sequence, and the Dark World without skipping major story sections. The journey includes exploration of the Garden, Cliffs, and Flower Castle, along with standard combat and ACT-based encounters.

The chapter concludes after the final battle against Flowery and the flower guardians at the top of Flower Castle. Kris successfully seals the Dark Fountain, but the story reveals that a second Fountain was created earlier, allowing the Knight to abduct Asgore. The ending returns the party to Castle Town and transitions into a post-credits scene hinting at future developments.

Reward: Unlocks standard story progression into Chapter 6 and completes the main narrative route.

How to Get to the Secret Boss Fight in Deltarune Chapter 5

Pink coins, bad decisions, and a very angry doll. | Credits: tobyfox

The Secret Boss Ending is an optional completion route focused on defeating Mad Mew Mew, also known as Pink. This path can be accessed during a normal playthrough but requires exploration and collectible hunting rather than story choices.

To trigger this route, players must collect at least 10 Pink Coins hidden throughout various areas of Chapter 5. These coins are typically found in optional puzzles, platforming sections, and exploration-based challenges. After collecting enough, players must purchase the Mysterious Key from Pink’s Shop in the Cliffs area.

The key divergence occurs near the end of Flower Castle, where players must ignore the main path leading to the Fountain and instead travel left into a hidden area. Dropping into the concealed passage reveals a locked pink door that can only be opened with the Mysterious Key.

The resulting boss fight against Mad Mew Mew is a high-difficulty encounter focused on fast bullet patterns and precise dodging. It serves as a major optional challenge separate from the main story progression.

Reward: The Shadow Crystal and completion of the chapter’s secret boss content.

Deltarune Chapter 5 Weird Route Explained

Everything is normal. That’s what makes it wrong. | Credits: tobyfox

The Weird Route Ending is a heavily altered alternate storyline that only becomes available if the player continues a Chapter 4 Weird Route save into Chapter 5 (from the chapter 3 and before). This route immediately changes the structure of the chapter and significantly reduces or skips the standard Dark World content.

The route begins with a scripted progression that leads Kris from home to the lake with Susie, bypassing most festival and exploration content. The key divergence is the lake sequence with Noelle, where the player is locked into a long interaction event with repeated “Proceed” prompts. Player input has limited influence, as the sequence is designed to continue regardless of choices.

As the sequence progresses, a hidden timer mechanic accelerates, and the screen becomes increasingly distorted until the chapter transitions into a CRT-style ending. The game then displays the message “Insert Chapter 7 Side B” before returning to the file select screen and generating a special completion file marked with “_b”.

There is another altered ending to the Weird Ending, which occurs if the sequence is interrupted or aborted late. In this version, the story partially returns to the Normal Route but with permanent narrative changes, including altered dialogue, repeated “Nothing changed” motifs, and Kris entering a corrupted state referred to as “Shattered Rose.” This version blends normal progression with lingering effects from the failed Weird Route.

Reward: A unique “_b” completion file, altered narrative state, and access to a drastically different version of Chapter 5’s storyline structure.

Did you manage to unlock the secret boss in Deltarune Chapter 5? Comment below to let us know.

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