Ngamer via CVG writes:
Enlivened by the hilarity of Visual Chat (a means of communicating, PictoChat-style, with team-mates), four-player action lets you power through stages faster and, on the tougher difficulties, begin to appreciate the subtler strategies the game has to offer. At its monster-bashing, technique-casting, rifle-blasting best, Zero can feel beautifully energetic and almost dangerously compulsive. But, most importantly, it can foster a real sense of camaraderie.
Succeeds in delivering Phantasy Star Online to DS, but niggling flaws and missed opportunities tarnish an otherwise great online RPG.