I think Tomb Raider is a true 3D on sega saturn since it smooth and no choppy. I could be wrong though.
I'm actually playing through this right now on my saturn. It is 3D but again a top down view like dark savior.
I really want to play the Saturn version but I think I'm going to have to go through the PSX version first so I can understand the story and plot. The Saturn version looks superior in almost every way which is surprising, I just wish someone could replace the text boxes with the PSX ones, I'd even pay them to do it!!!
There is a full game script on gamefaqs. I just play with my iPad open. Did the same for Lunar Silver Star Story MPEG Edition.