Improved version of the previous game!
The game is really improved.
The battle is smoother than the previous game, the AI isn't as pushover as the previous game. Or at least I felt that the AI is slightly better.
Each character has several outfits that they can use and the amount of character was increased. There's about twice as many characters in this game compared to the previous one (Battle of the Aces)
The moves and combos, however, are still limited like the previous games.
The game will also detect the previous game's save (though, not really sure what it unlocks as my Japanese knowledge is limited)
Overall, a very nice improvement from the previous game!