Daily Deltarune Bugs (@deltarunebugs) header
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Posting one Deltarune bug (hopefully) every day. Read the pinned tweet for more info. DMs open for submissions. Account ran by @ners_xd

Joined October 2026
🧵 Hello and welcome! The posts you'll see here are made merely for fun, and are not meant to "bash" on the game's quality, playtesting etc. You can submit bugs via DMs. I'll post anything ranging from tiny visual errors to crashes and softlocks! Maybe they'll be seen and fixed!?
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If you use the ScaredyCat act on Jackenstein's TUTU turn, you're fast enough to outrun him. If you end the attack at the same exact time as he catches you, the music stops until the end of the battle, because the cutscene stops it, but you end the cutscene on the same frame.
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I don't think Susie is supposed to say that. They forgot to remove Susie's portrait before this textbox!
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Love a blue wave, but I still get angry and see red when I think about how many bugs Deltarune has. Well, that's probably a good thing, because it means I have stuff to post... it's complicated.. Anyway, this text stays on top of textboxes, and you can erroneously alter it. (1/3)
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1
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The textbox overlaying issue is just another case of the BONUS ZONE text's depth value being too low, so it's drawn more in the foreground. (2/3)
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You can also change its font and size by triggering other fonts to display on screen, then leaving and reentering the room. The text isn't coded to set any specific font for itself, so it uses whatever was called last.
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When triggering this cutscene, you can go back up to where you came from if you interact frame perfectly. This doesn't break anything and you can proceed as normal if you don't do it.
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It happens because ascending through the wind tornado thingamajig gives you movement back when you land, but the slide immediately takes it away. So you have a one frame window where you can interact with stuff.
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190
The texts in the first time intros for Chapters 2, 3 and 4 are all off-center. It is especially noticeable in 2 and 3.
3
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Double whammy with the swan in the Acid Lake: - If you get on it while Kris is still in their walking animation, they get stuck in that pose until you leave the room. - If you hold a direction during a screen transition on the swan, Kris will face that direction until you leave.
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If you open the flower hangout menu and select one before the camera is done panning over, the choicers will be in the wrong spot. A similar thing happens if you back out of the hangout menu and interact with the shop before the camera stops panning.
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This happens because all choicers and some specific texts are not programmed to follow the camera after being initialized.
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In Chapter Select on PC, if you are on the Quit or Language Switch buttons, then press [Up or Down] and [Left or Right] on the same frame, you will see two souls on screen.
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1
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This happens because the checks for up/down and left/right presses happen on the same frame, and the left/right check still executes, even if you have already pressed up/down.
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Text in Chapter 1 is one pixel higher compared to other chapters. This is due to how the fonts are made. In Chapter 1, the characters are just set to be drawn 1 pixel higher than their desired position.
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144
2,274
Since there's no limit to how many POINTs you can have, high amounts (> 9999) cause overlapping with the P in the UI.
2
23
510
The Legend says "millenia". The correct spelling is "millennia".
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550
If you progress Rouxls's text here too quickly (done by holding CANCEL and rhythmically mashing both CONFIRM buttons; the built-in automasher is too slow for this), the background fadeout will persist until you leave the room.
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This happens because, the background gradually fades out in 30 frames, and after Rouxls appears, it fades back in in 10 frames. If you progress the cutscene so quickly that the first fadeout never finishes, it will do so AFTER the fadein is over.
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Another absolutely ludicrous, unacceptable depth issue. After Green becomes very upset, you can go to the right of them and you're layered above them.
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685