* Abilities go up in price because they do - shrug - you'll buy majority of them by the end of your Devil Hunter run
* Get TRIGGER HEART (when available) and AIR HIKE, MAX-ACT, then upgrade SNATCH, CHARGE SHOT, and just various sword moves
* You can spam the Buster but if you're going for S ranks, that wont cut it, you have to mix it up
* There will be more enemies as you go up the difficulties, and different enemy placements, and how much damage they can take
* You don't really need to play the other games to understand the story, but there are basically nods to the previous games