Below the tablet dock is the same layout as the Arcade Cabinet: a classic arcade-style ball joystick (the red top is really the onepiece you have to assemble, unlike the Ikea-esque Cabinet) and four pairs of buttons.
While there are separate entrances, the two generations share a kitchen and dining room, one floor below ground, with red leather chairs around a simple table topped with an antique, three-piece candelabra set.