I... must have missed your topic where you asked for those images. I actually extracted all these screens years ago. I wrote a small program to extract the raw image files but I couldn't figure out how the color pallet worked, so they were in grayscale, As a workaround I looked up the exact location where the Saturn stored the images and the color pallet in-memory. Using Yabause, I could replace those parts in the Saturn's memory with the images and color pallet from the screens in question. I managed to take screenshots of all the images that way. Since then, someone in Japan managed to accomplish what I couldn't and write a program that could extract the images with color.
Solo, I do believe I linked you to a .zip file containing those images at one point. I guess we never got around to uploading these images. Let me look them up, I still have them on my hard drive.
EDIT: what I have are 4 CHANGE files (used when swapping the CD), 4 ENDING files, the save screen and 2 Start menu screens (US/EU and Japan). Solo, any idea on where I should upload them on the website? I'm optimizing the lossless PNG versions, they're around 200kB each.