I’ve spent the past few months attempting to figure out a framework for Ghost Physics in the Danny Phantom universe? Enjoy my crazed scribblings.
Cliff notes version: The Ghost Zone is our dimension’s 4D “atmosphere,” absorbing harmful trans-dimensional radiation. Ghosts are made of the Ghost Zone’s version of matter, called ectoplasm, a substance capable of 4D motion (video explanation of that), “toggling” how physical forces (esp. electromagnetism and gravity) interact with it, and storing huge amounts of energy. A ghost’s unique nervous system and encoded body plan (the ecto-signature) remains in the upper energy levels of the Ghost Zone at all times, remotely controlling their body. Danny can chemically change his body between ectoplasm and regular matter, and has both a normal physical brain and an ecto-signature.
Okay so yeah, Mari’s a fuckin big boy as a feral/primal monster. Please pet him though, he still loves to be petted. And use babytalk at him, tell him he’s a good boy and that he has the softest fur and peets.