A great, sort of, "DLC" for the first game. The story itself throughout main missions was kind of dull, and you aren't really acting like a mercenary doing others' bidding to get by in this game (which I didn't mind that much since doing missions with a companion is kickass) but it isn't necessarily Armored Core. Most of my time in this game was actually spent in the "Arena Mode" which is a brilliant game mode where you battle against higher ranking ACs to become number one. Really made me change my build and actually think about the parts I'm using.