it's more armored core. The jump to 60 FPS is awesome, the heat mechanic is whatever (it's annoying most of the time but sometimes you can make enemies overheat in the arena which is cool), and that's about it. more missions, more arena, at least this time you have to start from 0 instead of importing your mech but at its core (heh) it's just more of the same, which depending on how you feel about the previous games may be good or annoying