Find a beautiful piece of art. If you fall in love with Van Gogh or Matisse or John Oliver Killens, or if you fall love with the music of Coltrane, the music of Aretha Franklin, or the music of Chopin - find some beautiful art and admire it, and realize that that was created by human beings just like you, no more human, no less.
—  Maya Angelou
Don’t ever think you aren’t good enough, For God has set you apart.
Don’t let the world etch its expectations on your soul, for you were wonderfully created.
Don’t fall into the trap of ignoring your God given beauty, for there is no fault in you.
We were born sinners, transformed into saints by the cleansing blood of Jesus.
You are appointed, anointed and adored.
—  31women (Gabi)
Gaster created Flowey and (probably) the RESET button.

(I have planned to upload the VIDEO version of this by SEPTEMBER 15. Until then you can read it!)


Yep, you read the title correctly. In this theory I’ll show you all the proof I have to support my wild theory. Warning though, there are some big spoilers ahead!

Let’s start off with a bit of backstory theorizing. In what year does Undertale actually take place? A lot of people seem to believe that the game takes place shortly after 201X. However I invite you to view the timeline in a different light.

What if the game actually took place nearly an entire century after Chara’s fall into the underground?

In Toriel’s house during the pacifist/neutral run there is a calendar you can interact with that states as follows:

This text changes during the Genocide route, where Chara is much more active about how they interact with things.

Now judging by the events of Undertale’s routes we can tell that the events of the Undertale (Chara and Asriel’s mission) happened quite a long time ago. After Chara, six more humans fell down before Frisk. This gives us a good idea that it took quite a while for us to enter the underground.

Judging by the facts above we can safely guess that the events of the game actually occur during 210X, almost a full century after Chara fell. Crazily enough, this is supported by Papyrus. His online name is Coolskeleton95, often people use their birth year as the numbers in their online usernames. And since Papyrus only showed up recently and acts fairly young, we can guess that the date couldn’t possibly be 1995, and so it must be 2095. This is supported by the fact that Papyrus has no idea what a human looks like. Which means he must of been born AFTER all 7 of the other humans (including Chara) have fallen and died.

Now that we have an approximate date for the game itself, we can get into the real theory. Gaster creating Flowey, the ability reset/save/load, and how he is connected to every major moment of the game.

What proof led to the belief that Gaster and Flowey are related? The true lab entries, for one. Entry 1 through 8 are written in a very specific manner. The punctuation and capitalization is correct and proper. The dialogue itself more formally written. Overall the first eight entries are more professional.

During these first eight entries we learn that the monster/determination experiments have begun. Flowey was chosen as the vessel. The experiments have started full swing.

ENTRY 6: ASGORE asked everyone outside the city for monsters that had “fallen down.” Their bodies came in today. They’re still comatose… And soon, they’ll all turn into dust. But what happens if I inject “determination” into them? If their SOULS persist after they perish, then… Freedom might be closer than we all thought.

However at this same time Hapstablook/Mettaton has written his first diary entry.

Mettaton’s Diary 1- Dear Diary: Shyren’s sister “fell down” recently. 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.

We can recognise an amalgamate in specific that does resemble Shyren’s body, or at least, her sister’s

This is lemonbread

This is shyren

Alphys doesn’t come up with the idea to make Mettaton until diary entry 6.

Mettaton’s Diary 6- Dear Diary: She surprised me with something today. Sketches of a body that she wants to create for me… a form beyond my wildest fantasies. In a form like that, I could finally feel like… “myself.” After all, there’s no way I can be a star the way I am now. Sorry, Blooky. My dreams can’t wait for anyone…

And it is suspected that she made Mettaton to impress Asgore, as well as give her friend a body.

So what does that all add up to? Alphys made Mettaton to impress Asgore either before she became the royal scientist or very VERY shortly afterwards. We know that she WAS NOT the royal scientist during the initial monster/determination experiments. This means whoever was the previous royal scientist had to of started the experiments and chosen Flowey as the vessel.

And who could that be?

Doctor W.D. Gaster.

Further proof is that Gaster would know who Toriel is.

ENTRY 8: I’ve chosen a candidate. I haven’t told ASGORE yet, because I want to surprise him with it… In the center of his garden, there’s something special. The first golden flower, that grew before all the others. The flower from the outside world. It appeared just before the queen left. I wonder… What happens when something without a SOUL gains the will to live?

Alphys, does not.

So now we’ve proven that Gaster created Flowey. Alphys made of had a part in it, but Gaster chose the vessel, the vessel covered in Asriel’s dust.

This is where the theory gets a little wild.

Now, we know Gaster disappears after True Lab entry number 8. The writing style dramatically changes from entries 9 to 13.

ENTRY 1: This is it… Time to do what the king has asked me to do. I will create the power to free us all. I will unleash the power of the SOUL.

ENTRY 12: nothing is happening. i don’t know what to do. i’ll just keep injecting everything with “determination.” i want this to work.


Now in entry number 11 we can confirm that Alphys is the author.

ENTRY 11: now that mettaton’s made it big, he never talks to me anymore. … except to ask when i’m going to finish his body. but i’m afraid if i finish his body, he won’t need me anymore… then we’ll never be friends ever again. … not to mention, every time i try to work on it, i just get really sweaty…

This one shows that Mettaton has a relationship with the author of the entry. Proof that this style of writing is done by Alphys. However entry 14 and 15 are written differently than either 1-8 or 9-13. It is my belief that the author of these two entries is none other than Sans.

We know Sans and Alphys know each other from the epilogue after True Pacifist.

Alphys knows Sans well enough to predict what he’ll say. Sans reacts quickly and covers it up with a joke, but the proof is there. Sans also has given Alphys dog food, proof he knows of Endogeny, the amalgamate dog.

(calling papyrus in front of Alphys’ lab without befriending undyne yet)

Using this it is very easy to speculate that Sans wrote entry 14-15, placing him as a scientist in the true lab. We know Sans is into science, based on his owning of physics books and his own laboratory.

Now, entry 17. There are two entry 17s. Entry 17.1, which is written by Alphys. Then entry 17.2, which is undoubtedly recorded by Gaster.

“Recorded you say?” Yes. Recorded. Entry 17.2 is read to us when we find it in the game files, otherwise known as the void. What Gaster is doing in the void is impossible to tell, but there are some things that occur that make us believe he did not stop experimenting.

We’ll get back to his experiments in a moment, first we have to find out “Why didn’t Gaster die from his accident, whatever that may be?”

Because he injected himself with DETERMINATION.

Every monster filled with determination becomes a goopy blob of what it once was. The model we believe to be Gaster inside the gray door looks quite goopy.

This goopy being would of had parts of himself dripping off. Whenever the accident occured and he fell into the core he was erased from the timeline. What happened to these blobs of Gaster?

They tried to grow new Gasters. This follower of Gaster is holding a piece of him, but it is clearly a head. A second Gaster being made. Or at least trying to form itself from the head.

Further support for this comes from a strange being you only encounter once in the game.

Memoryhead. This amalgamate is unique. Its ACT options are very similar to our own. 

This comes from Memoryhead having a small amount of determination, more so than the other amalgamates. Before flowey has control, Memoryhead has it, but of course, these things can barely walk or talk, so it didn’t know how to use it’s powers, but the option was there.

Memoryhead is in the shape of a skull, now where have we seen a disembodied head before?

Now like I mentioned, the amalgamate can’t even talk properly, so it wasn’t able to exactly control the timeline, but at this point whatever cataclysmic event Gaster created by falling into the core had already occur and Flowey was prime and ready to wake up. Once “your best friend” fully understood what was going on, the memoryhead lost the little control of the timeline it had.

Now… was Gaster was injected with determination or at least had interaction with it before/during his accident?, let’s take a look at why he’s responsible for the ability to reset.

Before Gaster’s accident, no human was able to reset. None of the seven human children were able to save or load. Not even Chara, who’s soul is a determination soul, just like Frisk’s. An argument could be made that humans on the surface can’t reset either.

For some reason the RESET/SAVE/LOAD ablity is a thing that only happens in the underground and for some reason is ONLY started to happen from a certain point before all 6 children fell down and on.

And I believe that’s because of the core, the one difference between the surface and the underground. The place Gaster fell into during his accident.

The core powers all of the underground, from the Ruins to Asgore’s garden. The moment a human enters the underground post-accident, they gain the power to reset. If they have enough determination to override whoever was in control before them. This makes it so that only the underground is caught in this save/load/reset paradox.

To sum it all up, Gaster created Flowey and injected himself with determination or got caught into it in his experiment before falling into the core. This caused the underground to enter a time paradox where whoever has the most determination gains control over the timeline.

Do you agree with the theory? Or can you debunk it? I’d love to get some responses.

(Theory by me and veir)