Lemon Bread
Welcome to my special hell.
Lemon Bread
Lemon Bread (JP: LEMON PAN) is an Amalgamate found within the True Lab in Undertale. She is composed of parts from Shyren's agent, Moldbygg, and Aaron.
Lemon Bread seems to have Shyren's agent's body with Aaron's arm-like object on it, and her head and teeth resemble a Moldbygg. Her "eyes" resemble the tip of Aaron's tail.
In the overworld, Lemon Bread takes the form of a vaguely humanoid figure.
During Lemon Bread's idle animation, her Moldbygg section forms into the jaws of a face, which roars at the protagonist and then promptly shifts back to "normal". This makes her the only Amalgamate to show any form of aggression during an idle animation.
Lemon Bread is a reference to Melon Bread from the game Gunstar Heroes,[1] from which her name is derived.
Before the events of Undertale, Shyren's sister had "fallen down", causing Shyren to isolate herself from others.[2]
Lemon Bread appears in the True Lab, in the room that houses the DT Extraction Machine. She is disguised as a SAVE Point and blocks the protagonist's way past the room. Interacting with her disguised form causes her to reveal herself and attack.

In the epilogue, Lemon Bread can be seen together with her sister. She seems nervous about having Aaron as her new brother, as she claims her "other parts" do not look forward to seeing him.
- Widens the screen and inserts large teeth on the top and bottom, leaving a single safe zone. Bites down quickly.
- Forms a mouth and eyes that trap the SOUL with small teeth, leaving limited room to move, and fires flashing orbs from her eyes, located near the top of the screen.

- Lemon Bread can be spared by un-hugging, flexing, and humming, in any order.
- Lemon Bread's dialogue appears repeated in twelve separate speech bubbles spread across the upper half of the screen.
- Welcome to my special hell. [Encounter]
- But nobody came. [Neutral]
- Do you think I'm pretty? [Neutral]
- That's what they all say. [Neutral]
- Stay here with me... [Neutral]
- [Spare conditions met]
- Life's flashing before my teeth [Unused]
- I've felt this before.
- ... [Neutral]
- Smells like sweet lemons. [Encounter/Neutral]
- You hear the melody of pulsating flesh. [Neutral]
- You called for help. But nobody came. [Call]
- You hum a familiar tune. Lemon Bread's body shakes... [Hum]
- You hum a familiar tune. Nothing else happened. [Hum #2+]
- You screamed out. But nobody came. [Scream]
- You flexed your arm. Lemon Bread's muscle shakes... [Flex]
- You flexed your arm. Nothing else happened. [Flex #2+]
- You let Lemon Bread be. Lemon Bread's teeth shake... [Unhug]
- You let Lemon Bread be. Nothing else happened. [Unhug #2+]
- You cried as loud as you could. But nobody came. [Cry]
- Monster has low HP. [Low HP; unused]
- Could this be goodbye!? [Spare conditions met]
- You hum a familiar tune. Lemon Bread seems to remember something. [Hum]
- You flexed your arm. Lemon Bread seems to remember something. [Flex]
- You let Lemon Bread be. Lemon Bread seems to remember something. [Unhug]
Lemon Bread is Shyren's sister. They are reunited at the end of the True Pacifist Route, and Lemon Bread expresses happiness that she can be with her sister again.

Concept art of Lemon Bread shown in the UNDERTALE Art Book reveals she was originally going to include Woshua in addition to Shyren, Aaron, and Moldbygg, with the tail ending in Woshua's tail.
In Deltarune, a gravestone implied to belong to that universe's version of Shyren's agent lists her name as "Shyra". It is unclear whether this is her name in Undertale.
- Lemon Bread changing from the shape of a SAVE Point into her normal appearance.
- ↑ UNDERTALE 6th Anniversary So We Play DELTARUNE Chapter 1 For Some Reason - LIVE! (02:05:46) on YouTube
- ↑
Dear Diary: Shyren's sister "fell down" recently.
— The first of Mettaton's diaries, Mettaton's house
It's sad. Without her sister to speak for her...
She's become more reclusive than ever.
So I reached out to her, and told her...
That she, Blooky, and I should all perform together sometime.
She seemed to like that idea.