Hello, I just finished Chapter 4-13, but I haven't finished Artificial Somnambulism yet (I'm at the 6th stage), despite it was unlocked after 3RD-02. When it was released, was Limbo released with it? If so, was the latter gated by a story mission? I ask because Lilya and Sonetto engage on a more advance mode of AS meant specifically for training, and since I've read Limbo has no story I wonder if there's a connection.