Board Thread:General Discussion/@comment-31981697-20170722123329/@comment-27136653-20171018140730

Mushrooms don't have holes tho. So it's not a mushroom either. And it can't be another game, because what WOULD it actually be? I'm not seeing any hints or references at anything else anywhere, except for the fact that it's a game made by Toby, in the room that's about Toby, and the only "whole" game Toby ever created is Undertale. All becaue it is a fact that the annoying dog represents Toby.

So the fact is, that it is Undertale. It cannot be anything else, because the room itself is referencing to Toby in its entirety, so it makes the most sense for this to be Undertale.

And you literally cannot use the self-referencing paradox as an argument here, since of course Toby isn't the annoying dog in real life. He is a human, who made a game, which he has inserted himself into. Of course, this still doesn't make his entire inserted character non-canon, as long as it doesn't reference the real world. But when it does, we can dismiss it, as long as  it can be "cropped out" of the main story, without affecting it. In which case, we would have to conclude that  the game is canonically self-aware, or reliant on the real world (like Oneshot for example; although, Oneshot is more about breaking the reality wall, eg. pretending that the main character is "real", while they too are a part of the game, that is, your computer).

Common sense is telling you that the developer room is a reference to Toby, but you chose to dismiss this fact, because you would rather change the facts in order to keep them all in, rather than just simply ignore them. And how do we call that? A headcanon. Your headcanon is that the developer room simply contains a magical dog, that just happens to be super-smart and annoying. I don't headcanon anything in this case and just ignore it, because it's for the best. If there is one sacred thing that us theorists must not break, it is the developer's will. And if that dog is supposed to represent him, then it cannot NOT be him. And if it must be Toby, then the stuff related to this dog must be about Toby too, meaning, more non-canon things that are not worth theorizing about.