I'm the SF2SourceCodeAnon and here's basically the summary of what I've gathered so far:
>No repos of code before 30th of June 1995 other than some scattered backup files that has some interesting stuff
>Pierrot has absolutely no placement but he's 100% functional. If I could find a ROM location for the mirage dragon meeting or write a new map file with him in, I can technically make an encounter with him. The latter requires compiling the ROM and I lack the toolset.
>Another new boss found, this one showed up in August proto, but has no pathing and animation - it's a phoenix. Funny enough the shape for it is in the ROM still.
>Complete map format for SF2 figured out. Stay tuned, as well as list of models and static assets (Some of them rubbed out).
>Slowly combing through MACROS file to understand the 3D engine. I think it's basically an ASM wrapper to send commands to the SFX2 chip (It's called the Mario chip internally so yeah I believe that's it).
>Cataloging SHAPES and trying to match them to stuff. Some of them are commented out. If anything, the 3D Anon should look into converting the stuff from SHAPES BSHAPES and ASHAPES files into OBJs - that's the actual assets there.
I'm gonna go to sleep. It's been a long day.