Now I am sure some people who know about the prototype of the game, but for those who don't know about it, specifically, there were some missing levels, specifically in Level 4. One of those I recalled reading about was the Blimp level. from this screenshot.
Unfortunately screwing around with the European Beta of bloodlines (The New Generation), mainly the area modifier, the level is no where in sight, neither are the other missing areas of Stage 4, but this is to be expected.
However I did find something in the level graphics for certain stages. Upon using the tile viewer in Gens, I had found what I believe to be the graphics to the weird blimp BG that had been removed from the final game.
I don't think its all the graphics, nor do I know the type of compression the game uses for graphics. But it seems to me that the graphics for the original blimp stage (4-7) are still present in the game, and for some reason are loaded too in in one section of Stage 5, But also 3-8 coincidentally plays level 4's theme too in this build.
I do know the blimp graphics are also in the final version too, also unused.
also I noticed the area modifier having a completely odd order of levels. When I get the chance I will list the levels. But almost all of the levels are completely in random order, also putting $50 or above in the level order crashes the game, presumably meaning that is where it ends.
If this topic is in the wrong forum, feel free to trash it.
EDIT: I do have more info on stuff and notes I will post later, but for now I need to sleep.