Like action RPG, 2 characters controlled by computer, and have that heavy SMT feel and summons. Instead of using a weapon, it call a Persona or whatever for each type of attack. For single attacks you call Siegfried, ice based Jack Frost, Megidolaon late in the game Lucifer or Satan, Raphael help you to glide and etc... Nothing so insane fast like a DMC game, but the same speed and difficult of the first KH.
I don't think it would fit for persona having something popping up behind your character constantly would be distracting, that and KH has it's own sense of physics that doesn't fit with persona. Maybe as a new spin off, but meh.
I played that Raidouh games a little,but there are way to little action in those. And create new spin off is not bad
Is bad when there is the logic that action ARPGs are the natural evolution of the genre, i call that BS and im glad ATLUS stick with Turn Based gameplay, there are way too much action RPGs for my liking.
The official Vulcanus of the Shin Megami Tensei IV boards http://www.gaijinworks.com/ Support CoH 2 Physical release.