Theory: Sans And Alphys Used To Work Together

theory: sans and alphys used to work together

Everyone in Undertale has a very distinct relationship with one another (not necessarily love). It is very obvious that Sans and Papyrus are two brothers that care about each other. It's obvious that Toriel and Asgore are former lovers. But what about Sans and Alphys?

While trying to speak to Alphys at the end of the True Pacifist Ending, there's a short conversation between Undyne and Alphys, and Sans tries to make a joke. But Alphys interrupted him with the same pun. So obviously Alphys knew Sans well enough to guess what he would say in that situation. But where did they know each other?

Let's backtrack.

We know that Dr. Alphys was a scientist before she became the Royal Scientist. She did experiments in the True Lab using DETERMINATION and recorded entries in there. But one particular entry stuck out to me.

ENTRY 5

In this entry, Alphys used "blueprints" to extract determination from the human souls. But what are these blueprints? In fact, the only other time the word "blueprints" is mentioned in-game is in Sans' workshop.

Since this is literally the only other time "blueprints" is mentioned, we must assume that these are the same ones Alphys mentioned. So if Alphys and Sans both have or had the same blueprints, and they were about scientific experiments, that could only mean one thing.

Sans was also a scientist.

There is actually more evidence that Sans was a scientist because of the items that he owns in his house.

We must assume that this is Sans' book, because it was hidden away inside of a joke book. I highly doubt someone would read a quantum physics book for fun, unless they could actually understand what it means.

Let's go back to the blueprints.

Now that we know that Sans and Alphys were both scientists, and probably worked together, let's see what other information we can find about the blueprints. If you interact with them, it says, "You can't read the symbols they're written in.."

Symbols? What symbols? Nobody writes in symbols!

Nobody except the author of Entry 17, widely speculated to be W.D Gaster, the old Royal Scientist. But what is Gaster saying? Well, he isn't speaking gibberish. He's actually speaking through a font called Wingdings, which can be translated. The exact translation is:

Dark

Darker

Yet Darker

The darkness keeps growing

The shadows cutting deeper

Photon Readings Negative

This Next Experiment

Seems

Very

Very

Interesting

What do you two think?

Now that is very cryptic, but it also gives us a lot of information. For example, if these are the symbols used in the blueprints, that means Sans and Alphys could understand Wingdings, and possibly worked with Dr. Gaster.

Does this mean that the "two" that Gaster was talking about were Sans and Alphys?

It's very possible.

However, how close were Sans and Alphys?

Alphys was most likely alone when she conducted the experiments on the fallen down monsters, and unfortunately turned them into Amalgamates. She seemingly didn't tell anyone about this and fell into a spiral of depression. But did she tell the one person who could have understood what she did? Did she tell her old coworker?

When you call Papyrus outside of Alphys' lab without befriending Undyne, he and Sans say this:

Now Sans could be joking, but a lot of Sans' "jokes" turn out to be serious, so what if this was also serious? Does this mean that Sans knew about the Amalgamates? It's highly possible, especially with this dialogue:

I highly doubt that Sans was trying to eat healthier by eating dog food, but why would he give the bag to Alphys? For all we know, she doesn't have a dog. But she does have another "type of dog." That's right, Endogeny the Amalgamate. It's pretty likely that Sans knew about the Amalgamate Experiments, and if Sans is the only one she told, it's obvious that these two were very close.

But what did Sans do as a scientist?

And how do these two know Dr. Gaster?

I guess we'll never know...

Unless I'm really bored and decide to make another craZy tHeorY-