Alright, a bit of inaccurate history lessen on Zell.
I found out by going to the back end of their Pixiv FANBOX page, the first posts so to speak, there where and still are posts of the original FOBS demos!
It also looks like that Zell always works this way as we see in the remake, in that horror gallery period of posts, all the way back to those original demos.
Make a new scene, drop it into the program at the end of the month, repeat.
Some times some other things might be added too.
Most importantly there are unreleased monsters that never showed up in either A or B version!
One of them has even been added to the December build!
It's the small one with white tiger striped limbs in the starting area called Byakko.
So in conclusion Zell's way of releasing demos never changed, Byakko is an call back and if you wanna see the old demos
You must be registered to see the links
.
Just go to the last page and work your way up.