The entity "JUDY" is not well-defined within the canon material of Twin Peaks at all.
There was only 1 perfectly human girl by that name "JUDY", who lived in the 1950s of a timeline the Fireman seemed to have altered (slightly). And how exactly she is supposed to be even only Universal+ is a very BIG MYSTERY (= she definitely didn't display any feats like that).
But "MYSTERY" is also exactly the very "key term" for everything that has to do with Twin Peaks and how their cosmology should be scaled.
The series is so filled up with "surreal imagery" and "symbolism" and "metaphorical language" that much of it is left to the interpretation of the viewers.
In fact, most of the whole TV series is so "mysterious" that I'm still trying to comprehend it / make sense of it.
There are some things I think I can confirm by now, however:
There are extradimensional, possibly outerversal dimensions (Red Room, Purple Sea).
Fireman / Dido see everything as fiction, either on a TV screen or as a dream. Fireman also seems to have complete plot awareness, seems to "dream" the whole setting (kinda like Azathoth does in Cthulhu's Mythos), and can manipulate it (including timelines).
Dido seems to "listen" to all of existence like an old lady would listen to some Jazz music from a gramophon. This has some similarity to how e.g. Eru Iluvatar in Tolkien's universe defines existence as a piece of music.
And finally, ONLY Dale Cooper eventually becomes aware of the fact that he and everyone else in Twin Peaks (even including the beings in the Red Room, who already transcend causality and concepts for time by themselves) exists only within a dream (likely the Fireman's and/or Dido's dream).
So Dale Cooper's role within the plot has some similarities to how Akuto Sai in IUND knows of the only-fictional nature of what seems to exist (no matter how higher-dimensional).
JUDY could also be interpreted as an alias for an ancient "dark" cosmic being which could've been known ever since the Mesopotamian cultures, but llike I pointed out - much of this is really only "a possible interpretation" and not 100% a fact.
Twin Peaks is (kinda like Cthulhu's Mythos) one of THE most complicated verses to powerscale properly, because already a reasonably correct interpretation of all the symbols and surreal ideas likely requires an academic degree in literature science or sth like that.
I wanna be 100% honest with you.
The entity "JUDY" is not well-defined within the canon material of Twin Peaks at all.
There was only 1 perfectly human girl by that name "JUDY", who lived in the 1950s of a timeline the Fireman seemed to have altered (slightly). And how exactly she is supposed to be even only Universal+ is a very BIG MYSTERY (= she definitely didn't display any feats like that).
But "MYSTERY" is also exactly the very "key term" for everything that has to do with Twin Peaks and how their cosmology should be scaled.
The series is so filled up with "surreal imagery" and "symbolism" and "metaphorical language" that much of it is left to the interpretation of the viewers.
Of course leaving that much room for interpretation also means that some people have scaled the cosmology outright to High 1-A / Tier 0.
In fact, most of the whole TV series is so "mysterious" that I'm still trying to comprehend it / make sense of it.
There are some things I think I can confirm by now, however:
There are extradimensional, possibly outerversal dimensions (Red Room, Purple Sea).
Fireman / Dido see everything as fiction, either on a TV screen or as a dream. Fireman also seems to have complete plot awareness, seems to "dream" the whole setting (kinda like Azathoth does in Cthulhu's Mythos), and can manipulate it (including timelines).
Dido seems to "listen" to all of existence like an old lady would listen to some Jazz music from a gramophon. This has some similarity to how e.g. Eru Iluvatar in Tolkien's universe defines existence as a piece of music.
And finally, ONLY Dale Cooper eventually becomes aware of the fact that he and everyone else in Twin Peaks (even including the beings in the Red Room, who already transcend causality and concepts for time by themselves) exists only within a dream (likely the Fireman's and/or Dido's dream).
So Dale Cooper's role within the plot has some similarities to how Akuto Sai in IUND knows of the only-fictional nature of what seems to exist (no matter how higher-dimensional).
JUDY could also be interpreted as an alias for an ancient "dark" cosmic being which could've been known ever since the Mesopotamian cultures, but llike I pointed out - much of this is really only "a possible interpretation" and not 100% a fact.
Twin Peaks is (kinda like Cthulhu's Mythos) one of THE most complicated verses to powerscale properly, because already a reasonably correct interpretation of all the symbols and surreal ideas likely requires an academic degree in literature science or sth like that.