So... are they playing games at the same time that are off-screen? Unless they use the GTS (which I doubt, given the sound of it), they're going to need both versions from each game set (or be strategic about cross-gen availability), and play through BW, RSE and DPP..
I do not believe that they are playing any games off screen. It wouldn't take them a whole week if that was the case.
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SuperNiceDog is about 20% cooler then the other gurus.