hello, i have a suggestion.
i noticed you implemented a "reserve partner" system where you can switch to a second character inside of the dungeon.
however, when i lose a fight with either characters, i get a Game Over which kinda undermines the whole purpose of having an extra character in your party.
I wanted to suggest a "Two Strikes and You are Out" system where you can lose a fight with one of the characters in your party and continue to explore the dungeon with the OTHER character as long as you don't lose a fight with him.
that would not only make it easier to go through the later dungeons but also encourage players to level up the reserve character and learn how to use them so that they aren't caught off guard when their "main" loses a fight.