Is it even remotely possible to tease a game character for longer than a decade without them being disappointing in the end?

No, that's why he's still not getting revealed.
His whole thing is the dark, in Deltarune is a metaphor for possibility and potential, mystery.
He will forever be dark, at this point the dark is Gaster.

>>714552925 (OP)
Yeah. Guilty Gear did it with Asuka, Fate did it with ORT, it was fine

>>714552925 (OP)
Just drop him at the very very end and make him say a one liner

He's never making an appearance, I bet he doesn't even get namedropped
Best we are getting are his initials at the end of some sort of post-credits monologue text crawl

DT Extraction Machine=>Deltarune extraction machine

I will write Tobert a very strongly worded letter if I still don't get closure on this mystery nigger
It's been ten years

I just wanna know what the fuck he is at this point.
Is he the eggman? Is he the vessel creator? Is he something else?

>>714554179
That would be missing the point of Faster, the dark, human potential, is endless.
The lightner side of things in Deltarune is a dark world btw.

>>714554290
>Faster

>>714554393
lmao

>>714554285
UT Gaster is behind the tree
DR Gaster operates Survey Program

>>714554179
there is no mystery. toby grew up with game betas, hacks, rumors, creepypastas and wanted to do his own

>>714554780
explain the constant teases then

>>714554179
>It's been ten years
Make that TWENTY years
please toby don't do i'm just joking