Although the mission structure remains familiar — complete quests, earn rewards, advance the story, etc. — the plot is different. This time Neptune gets caught in a space/time rift that transports her to an alternate dimension. It’s essentially the same world, but it’s an earlier time (Lastation and Leanbox both come into existence during the story arc) and none of the CPUs know who Neptune is. That allows for the introduction of a new CPU, Plutia, and plenty of old-school gaming references.