After we start the game, we can choose some menu items. At start, the cursor is (conveniently) on Start, but we're going to skip it 'till later. We have to explore around before it.
So, let's go to Config and see how things are going.
From here, we can change
BG Volume,
SE Volume,
Voice(!) Volume (yes, there are voices, but they're subtle that you might not even notice them),
Language (between English(!) and Japanese, I think),
Key Config,
Screen Config,
and Exit.
I think we'd be interested in Key Config; the default mappings are a bit confusion, even after checking the manual (yes, this game has one, and I didn't have to translate it this time :3 ), and don't you tell me to use a controller, because that would only make matters worse.
(Table with default controls, and what I set them to)
After pressing the buttons or not, let's go to Screen Config. There we have
Window Size,
Full Screen,
Same but Type,
Vertical Sync,
Apply Changes,
and Exit.
I'll play in one of the smallest resolutions, and in window (because you know I don't enjoy in full screen ;w; ), not sure what Vertical Sync does, but let's leave it on.
Back to the title screen, onto the Collection. If I were to guess, I think it is for Achievements. I've not got any yet, but we'll likely see this change at some point.
For Special, I don't know, and we can't access it anyway.
As for Exit, I'll leave you guess what that does.
Let's set the cursor back to Start, where it was from the start, and action key to start. Now we're greeted by a File Select menu. We can have up to 3 of files. I'll choose the 1st one, like I always do.