I just loaded up my copy and made a few notes for you, Lance. It’s been a while since I’ve played it, and I don’t think I tried it for very long when I first got it.
When you load up the game, you’re given the option of two modes after pressing Start on the title screen. Arrange Mode and Sega Saturn Mode. Sega Saturn Mode is almost identical to the Saturn version - it uses the same dragon and enemy models, and the option menus are laid out in the same way as far as I remember.
Arrange Mode includes the additional Pandora’s Box option to the title screen. Here’s the list of the options that Pandora’s Box includes:
Episode - Choose your episode here. Episodes become playable as you get up to them. By the looks of it, I only got up to Episode 5 last time I played it. Does that answer your question, cactuar?
Level - This is where you can choose your difficulty level. There are six settings:
Easy
Normal
Hard
Easy (US)
Normal (US)
Hard (US)
Presumably the Easy, Normal, and Hard options on their own are based on the Japanese version of the game, and the others on the US version.
Life - you can choose from “Normal” and “Zero”.
Instrument - On or Off.
Illustrations - Various art. Appears to all be on Lagi’s site. Looks like more probably becomes unlockable later on.
Films - Appears to just be FMVs and cut scenes that have reached in the game.
Special - More “films” such as a demo of Episode 1 and of the end credits.
The game itself is much the same besides some of the models being updated. There’s also the option to change between “Up/Down” and “Normal” controls when the game is paused, so that you don’t have to go back to the title screen to do so, which is handy.