The Dreamcast and PC Undermill both have same texture count, 49. For PC, grass1 and grass2 is 256 x 256. Dreamcast 

lists them as 256 x 256 as well, but the texture size is 128 x 128. The first four bytes before the texture names has 

the proper file size.

For PGMS (Preprocessed Ground Mesh)
Dreamcast: 2.38 MB
PC: 1.94 MB

For APOS (Actor Positions)
Dreamcast: 456 objects
PC: 425 objects

This is unusual, because the PC version normally has more level objects. Maybe it's because of the hidden area for the 

Dreamcast version.

Juliette's Hidden Undermill Training
http://furfighters.xemnas.net/beta.php

Fur Fighters: Juliette's Hidden Undermill Area
https://www.youtube.com/watch?v=iCxsRzaykoI