Alright, it works

It's in the first post.

Oh yes, I looked more closely at it and it looks like it is actually a different struct! Which is weird...

Maybe after this I can start looking at the file names

Just run it through google translate if you don't like english lol

Bus files are just archives.
You can upload them if you want.

Here's the script to get the filenames, though I don't know the relationship between the filenames and the file data. It runs into an issue while decompressing files though. I might get through a couple files depending on the archive, before it tells me there's a decompression error. Does offzip try...

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What did low lines use to decompress it.
I found a "batchlz77" tool for NDS games but it doesn't recognize this.

UPDATE: Now it works #Four Seasons Cake decompress comtype LZ77WII idstring "CMPR" get SIZE asize math SIZE -= 4 get NAME filename clog NAME 4 SIZE SIZE ........................ OLD http://forum.xentax.com/viewtopic.php?f=16&t=8369 Can't seem to get this working. #Four Seasons Cake dec...

It seemed complicated from the start cause I saw "NDS" and thought "must contain all sorts of ways to squeeze as much info as they can into a small file" Upload a couple dozen more of different sizes (particularly objects that do NOT have bones). Maybe it will become more obvious...

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There's probably a value in there that determines how many extra bytes to read. There are three offsets at the top of the file, and the material offset is easy to work out, same with the bones offset. But then the third offset just takes me to the bottom of the file with a bunch of other offsets tha...

Don't know the vertex format or how the faces are drawn.

Or even how to get to the vertices.

The bone struct is not consistent either. For example, many of them are 80 bytes, but some of them are bigger.

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No unfortunately I don't really understand animations all that much aside from the fact that they use keyframes...