Hi!

I've made some progress!

First of all:

DIFFICULTY OPTIONS

This will actually make multiple playthroughs worth it!
Normal mode is the way the game is meant to be played at first.

But Hard mode has some differences and extra content (Lunatic shares the same content as hard mode, it's just more painful)

Enemies are much harder to beat up, different bosses, you have worse equipment, less abilities at your disposal and less party members in some cases!

As the menu says, this cannot be reverted, so don't fuck it up!