Interestingly enough, this is a unity game, and the majority of graphics are pretty much in-place. The issue lies in the fact that extracting them just results in a garbled mess of distorted images. I assume this is because of some form of compression or such for the Switch unity graphics but my searches for solutions has turned up...well pretty much absolutely nothing useful.

Here's an example. Two files, the packed archive, and an extracted TGA from it as and example of the result.
https://www.dropbox.com/s/vev993366z24i9...m.zip?dl=0