Quick question: Why do I have these images in my game files?

I got there to see if I could hack the game to restore the first-time menus (if anyone knows, please do tell me) and I found them. I don't even know how they got there or what they're for.

Has anyone seen this? Before anything, I'd just like to say Toby has already called out people for impersonating him, so doing this would be a bit hypocritical. https://fwugradiation.tumblr.com/post/697982043876950016/seems-l…

So...

It appears we're early, huh...

...

...wait.

...Early?

Early to what...?

Undertale, but nothing's wrong.

* You looked into the mirror.

* ...

* It's only you.

Howdy

Finally finished this costume before Halloween

Oh yeah and can't forget that the dog's soul is mine

A taste of what's to come. It ain't much, but I'm doin' my best from over here!

Teaser. Song by Youtube Fazy, I believe.

I've been working on something. Something big. Something, I hope, you will find

fascinating.

Truly,

fascinating...

Mew

It is with great pleasure that I announce that I have been working on a new Deltarune fangame. I was not alone this time, however, for I had the great help of @Chuckles02 . As for what the game is about... I'll give you a hint. It is pretty hard, though.