In the X-Tale universe, XGaster makes multiple entries that serves as a backstory to the whole X-Tale plot. By Part 21 (pages 70-72), entries begin appearing at the end of certain parts, giving the audience the story of what happened in X-Tale.
Entries also appear in the short animation series that involves all of these timelines.
THIS IS OUR HOME. I WILL DO THE BEST FOR THEM.
I HAVE A PROJECT IN MIND IN THE FUTURE...BUT FIRST...
I WANT TO GIVE THEM THE OPPORTUNITY TO BE SURROUNDED BY A GOOD FAMILY AND FRIENDS LIKE I SAW OUT THERE.
THE INHABITANTS OF THIS UNIVERSE WILL EVOLVE THROUGH TIME.
OTHER UNIVERSES USE THE TERM "GROW UP". FRISK AND CHARA LIKE THIS KIND OF PHENOMENON.
THEY ARE REALLY ENJOYING THIS. MY JOB HERE IS DONE.
This is our home. I'll do the best for them. I have an idea for the future. Our little game is still in development, but first, I want to try something.
I want to know the feeling of growing up. I want to see them learning about life, about family and friends...about feelings.
...WILL THIS BE ENOUGH?
THIS COULD BE MORE PERFECT FOR EVERYONE IF I USE...
I HAVE OVERWRITTEN THE PREVIOUS TIMELINE IN A NEW STORY.
THE CHILDREN WILL BE SURROUNDED BY MY CREATION.
"Not again" - SAID ONE OF THEM.
I DO NOT ACCEPT THAT WORD IN MY UNIVERSE.
TOO MUCH HAPPINESS.
AT THIS POINT, I WILL NOT BE ABLE TO CREATE THE BEST STORY IN THE ENTIRE MULTIVERSE.
MAYBE...DEATH CAN MAKE THIS MORE INTERESTING.
EVERYONE LOOKS AFFECTED BY THIS LOSS. ESPECIALLY THE TWO HUMANS.
THEIR REACTIONS ARE WORTH OBSERVING. THIS ATMOSPHERE MAKES ME FEEL WHAT
I̷̮̕N̷̬͑̈́K̷̩͔͒ DESCRIBED AS "EXCITEMENT"
My children are now healthy and strong adults, rounded by my creations with kind personalities. I like this peaceful story.
HAVE I DONE SOMETHING AWFUL?
NO...THIS IS HOW REAL LIFE IS SUPPOSED TO WORK.
EVOLUTION REQUIRES SACRIFICE.
THERE IS NOTHING LEFT.
IT IS TIME TO OVERWRITE THIS STORY AGAIN.
X-Tale's version (referred to as Entry 6)
There's nothing left. I do not feel very well. It is time to OVERWRITE this place again.
Letting more timelines appear and exist forever means failure. I also have failed, but I can fix all my mistakes whenever I want without creating useless variations of my perfect story.
I have remembered a timeline from a Alternate Universe where everyone were...different. Their behavior, their own world was swapped. I tried to the same to my world but now I hate it. Happiness makes me sick. The children told me I am an insecure old man. They are mad at me.
I will try creating a genocide route. It is my first time overwriting one of the children. The abilities of their DETERMINATION is the same as in the other alternate universes and the Original Universe.
The other child has rebelled against me. I have witnessed that ability known as reset. It may be an inferior version of my OVERWRITE. He didn't achieve anything, he simply altered this timeline to save his brother from what I had forced him to do.
I can see the hatred in their eyes
CHARA IS THE STRONGER ONE.
The prototype of the X-EVENT managed to destroy his brother. The ability to not die thanks to the DETERMINATION is a very useful power. I need more.
PROTOTYPE NUMBER TWO. The mastermind hidden within another body. What will two minds be able to do with my powers?
The X-EVENT has made his first creation.
The X-EVENT tried to rebel against me. It seems I got too confident when thinking I had him under control. Even so, the fact the Experiment can use his own creativity is very interesting.
For the first time in a while...I feel scared.
Everything that exists here is MY creation. I can do whatever I want to them...but I am afraid that I will disappear as punishment for everything I did to them in the past. I am not done yet. They can't do this to me.
The experiment was a success. Now it's time to give him a name.
Today marks 10 years since the experiment was activated. All subjects involved present an appropriate behavior.
However...there's one subject that I have to analyze again.
I can reset his code...but...I'm sure this won't work anymore. His core code is regenerating again.
I'll check his future reactions with the experiment. So I will know if I have to overwrite...
NO MORE TIMELINES!
I DON'T NEED NEW TIMELINES
THIS IS MY PERFECT STORY. MY PERFECT UNIVERSE
MY WORK IS NOT A MISTAKE
MY EXPERIMENT...WHAT IS MY EXPERIMENT?
I am watching you.