trying to start fights harder than "Easy" at max level gives an "Error: enemy354" and doesn't start the fight
pretty sure it's being at max level that causes it
also seems like I can't do the costume changing stuff despite being finished with some of the stories (I think? The contacts menu isn't very clear but the game told me I was done, although I used the Update Old Saves thing so maybe that broke it)
the items are a great upgrade to the combat system, btw, makes it much more interesting