Lali ho! I've managed to acquire Prologus, and since I know there are a few people waiting for it, here's the details. Sorry, no download links. - Lightning and Kain are playable, but not Tifa, Laguna or Yuna as far as I can tell so far. No sign of Gilgamesh either. Sorry. Returning characters in the demo are Kefka, Sephiroth, Jecht, Warrior of Light, and Garland. Whether anyone else can be unlocked in the demo is unknown, will keep messing about. Other characters show up as opponents in Arcade and Story modes. - There's a story mode, of sorts. Be warned, it seems your HP does not regenerate between rounds, hence why I can't beat Cloud in stage 4. - Sky Fortress Bahamut, Prima Vista and Crystal Tower maps are available, among others. - Arcade mode, easy and hard, with different level setups for each mode. - The shadows for each menu option show Lightning when Story is highlighted and Kain while Arcade is up. The list of achievements shows Laguna and the Museum shows Vaan, so maybe they are unlockable in some fashion? - Plays pretty much the same as Dissidia. Assist attacks cost 1 segment of the guage for Brave attacks, both for HP. Assist characters can be attacked and if an attack connects, the assist is temporarily locked and the guage emptied. - Assists can be used even if the assist character you have set is your opponent at the time, hence why I just saw a rather amusing scene of Cecil beating up himself. - Holding  as Kain charges his jump attack, which homes in on the target when fully charged. - EX guage charges pretty damn slow... - Music can be changed in Arcade mode. Not tested them all yet but J.E.N.O.V.A has been remixed. Will keep up the info as and when I acquire it. The demo is out there if you want it. Not hard to find. Comes to about 580MB as an ISO. Japanese only, obviously. But playable with no fuss if you've already played Dissidia. Good hunting. Now back to collecting these EX orbs so I can leap over the moon and pwn Exdeath Blaze.