#also yeah this motif is what my url's referencing lol. i do wonder if the reason there's multiple ralseis is this reflection-division thing

[mirror-ralsei]

THEORY: The Ink Blot Test & Symmetry in UTDR

This isn't as much of a typical theory as it is pointing out a design element that I think really needs more discussion: the distinctive style used in certain visuals in the game.

It's actually kind of difficult for me to describe. But there seems to be a recurring style used across many enemies and their weapons. This style is typically white in color, and typically very ornate and detailed-looking. It's easy to pick out because most of the shapes in Undertale/Deltarune's sprites are more simple...and because of one fact: all of these designs look symmetrical.

Here are the places I noticed this style appearing. Hopefully as you look at these, you can understand what I mean by a particular “ornate, symmetrical look”:

Reaper Bird's overworld appearance

Reaper Bird's body

Asriel's CHAOS BUSTER

Final Froggit

POSSIBLE: Knight Knight's Good Morningstar (listed here as “hammer”)

POSSIBLE: Memoryheads (they're in 3/4 view and melting-looking so it's harder to tell, but notice the curly parts and comb-teeth-like parts)

Gaster Blasters (using the unused version since it's easier to notice the style without the eyes)

(While most of these designs are technically not symmetrical if you look closely, they all definitely give the impression of being so.)

There's some other possible references to this style, but I'm just going to focus on the more distinct ones for now. And even some of the ones I've listed are debatable. If I had to pick just a few, I'd use Reaper Bird, their overworld sprite, and CHAOS BUSTER as the definitive examples.

So it's taken me a couple years of not quite being able to place why this style felt so familiar. At first I thought they might look like fractals...

...but that wasn't quite it. Finally, all of a sudden, I put my finger on it.

This design style reminds me of Rorschach blots.

For anyone who doesn't know, the Rorschach test is a psychological test involving the subject looking at inkblots and determining what these patterns look like to them. As you can see, the inkblots are very intricate and symmetrical - just like the examples above.

How does this connect to Undertale? Not too much. But Deltarune? Possibly a lot! Maybe that's the reason most of the instances where this style appears seem connected to Deltarune in some way.

For starters, inkblots are black and white. Specifically, they're black patterns on a white background. So far, every instance of these inkblot-like designs in UT/DR have been the inverse of this: they're all white patterns on dark or black backgrounds. We know light and dark have meaning in Deltarune, so this makes sense.

The ink blots' meaning are what you make of it. Your brain determines what real world things this abstract ink on paper looks like to you. This seems like it could tie into the concept behind the Dark Worlds, and how they seem like “interpretations” of items in real life: For example, the Halloween Pencil becomes a SpookySword. (It's possible the ShadowCrystals may play on this “perception” idea a bit too, but we don't know yet.)

Doctor Gaster seems to be conducting tests on us (Sound Test, SURVEY_PROGRAM, etc.) to observe our feedback. This thematically fits with this whole Rorschach blot test reference. I'm not sure if “WHAT DO YOU TWO THINK?” from Entry 17 and the egg man's flavor text 'What do you think?” are necessarily connected to this at all, but it does happen to fit the theme, lol.

All right, so we've established that there seems to be a symmetrical-looking style. We theorized that maybe they were supposed to evoke a similar look to Rorschach blot tests.

Now we're going to speculate even further.

So why exactly was this Rorschach blot looking style chosen? I think this symmetrical look might be based around reflections. After all, Deltarune involves a Light World and Dark World that reflect each other. And there are actually a few important references to reflections across Undertale and Deltarune.

Kris first appeared in Undertale as the PC's reflection in a puddle if Undertale is being run in Debug mode (Video by marxvee)

Reaper Bird is encountered in a mirror

Asriel and Kris' sides of their room are almost perfectly symmetrical in terms of layout and furniture

Kris' room in Ralsei's Castle has mirrored sprites of Asriel's trophies

The File Select text before Chapter 1's completion states “CHOOSE THE TARGET FOR THE REFLECTION” when copying a file, “IT IS IMMUNE TO ITS OWN IMAGE” when trying to copy a fiile onto itself, and “IT CONFORMED TO THE REFLECTION” when overwriting a file with a copied one

Mettaton NEO's attack is incredibly high but defenses are low, Spamton NEO's defense is incredibly high but attack is low

Gaster's motif of “666” is “mirrored” by 999: 999 appears in multiple places, eg. Chara's attack, stats of Grandpa Semi were “atk: 99999, df: 99999, hp: 999” (pointed out by LeedleLel's comment on this video by Lil' Alien).

The background of Jevil's fight is a mirrored image of a carousel.

The mirrored sinks in the right hospital room read “(It's a regular sink.)” and “(It's a clone of the other sink.)” Also: “(Perhaps there was originally one tall sink that was cut in half to create both of them.)”

All leg options in the GONER_MAKER are identical except the final one, which is mirrored. (pointed out by Shayy via Semi Frequent Undertale Facts)

The background of the GONER_MAKER itself is mirrored.

The background of the Asriel Dreemurr fight is mirrored.

The strange fog graphic before Papyrus' battle appears mirrored.

"I can't get any closer to the camera, I can't even see...my...little reflection." from the Spamton Sweepstakes

POSSIBLE: Gaster's belly face (upside down, details are white on black background, where Gaster's main face are black on white background)

POSSIBLE: Hot Fridge (inverse of the function of a normal fridge. look this one's loose lol, only including it because Alphys invented it and fridges are tied to Asgore's egg fridge, Snowdrake's mother, the Sans fridge call, and maybe the unused “rustfridge” in the Trash Zone (a place rife with possible Deltarune references))

POSSIBLE: Unused rooms 123 and 321 (123 is a relatively accessible unused room with interesting dialogue and 321 is...dark, and "empty").

So notably, the places we find this reflection motif in Undertale seem mostly connected to Deltarune: Kris is the PC of Deltarune, Reaper Bird is tied to Deltarune through Everyman, Mettaton NEO is similar to Deltarune's Spamton NEO, and Gaster is...well, probably the one who gave us our SURVEY_PROGRAM in the first place. Even the more tenuous examples of reflections seem plausibly Deltarune-related, such as the fridge Fun call and the Gaster belly face in Spamton's dumpster and a reflected dark room.

I'd like to expound a little bit on the File Select and sink dialogues. Both of these seem to be playing with a concept that could explain this reflection motif.

Copying a file in the File Select seems to mean we are “reflecting” it onto another slot: “CHOOSE THE TARGET FOR THE REFLECTION.” We cannot copy a file onto itself because “IT IS IMMUNE TO ITS OWN IMAGE.” If we overwrite an existing file with a copied one, “IT CONFORMED TO THE REFLECTION.” Interestingly, though, if you copy a file into an empty slot... “THE DIVISION IS COMPLETE.”

Not multiplying the file - dividing it in two. The original file is also implied to be changed in some way by this, because if you cancel the action of copying a file into an empty slot, “IT RETAINED ITS ORIGINAL SHAPE.” Meaning it would not have retained its original shape if it were copied.

The flavor text for the “cloned” sinks reflects this (hah) exactly. “(It's a regular sink.)” and “(It's a clone of the other sink.)” are followed by “(Perhaps there was originally one tall sink that was cut in half to create both of them.)” Aside from being relevant to the only tall sink we know of, Papyrus' in Undertale, this seems to be setting up a concept of “reflections” representing “an original being divided in two.”

That's about as far as I can take this with the context we have now. We don't know what exactly this reflection/division concept will mean in the plot of Deltarune, as it hasn't showed its hand yet. We don't know if the resemblance of that one recurring style to inkblots is intentional or just coincidence. But at least we have some possible explanation for why these motifs of symmetry and reflections keep showing up.