It makes me happy to see this game released in the states on PS2. It saddens me to see what this game is for the price.
Content - GG XX AC adds everything from that version, plus new stages & music, two new characters never seen outside of the Japanese versions of GG, Order-Sol and A.B.A. (making the roster climb to 23 playable characters) and new gameplay tweaks to existing characters. Along with those, 3 brand-spanking-new gameplay additions were made; Throw Break, which is pretty self explanatory; Slashback, which is GG's version of a perry with reduced block stun; The most notable addition is the Force Break special move, which takes up 1/4 of the Tension Gauge upon usage. Most characters have gained a brand-new move in order to have a Force Break attack, and some existing characters have had very powerful moves converted into Force Break attacks. Arcade, Medal-of-Millionares, Survival, Vs. and Training mode are all included, but even though the XBOX version, Guilty Gear XX #Reload: The Midnight Carnival included online-playability, I'm saddened to say Accent Core doesn't.
Presentation - The voices are completely re-recorded and well-done, with some characters using new voice-over actors all-together, and some new tracks for stages were added. The artwork for all the characters have been re-done as well, and look much better than ever before, which is saying quite a bit, considering that Guilty Gear has always had wonderful graphics.
There is no doubt that GG XX AC is a game that any Guilty Gear fan is going to want, and once they play it, they will realise it's the best version of the game thus far.
"What's the down side?", you ask? With all the changes made, it's sad to say this Guilty Gear XX Accent Core isn't a fully-fledged sequel so it doesn't quite have enough content (especially the exclusion of online) to justify the price of admission; $29.99. My advice is to wait until it's released on Greatest Hits.