Sonic Adventure 2 Battle is a rerelease of Sonic Adventure 2, which, if you know my thoughts on that game, means this is already a masterpiece from the start. However, this version in particular adds even more depth to the chao garden and more multiplayer modes, which makes an already perfect game even better. The PC port of this also isn't nearly as bungled as Sonic Adventure 1s, and while the cutscenes of this game definitely took a visual hit, it's still sonic adventure 2. I've spent at least 500 hours on this game, it's one of my favorite games of all time. Play it.