The stars of Sonys The Playroom are meant to be its robots. The Playroom — an alternate reality game that comes pre-loaded on PlayStation 4 — projects the miniature machines into players living rooms. Using the PlayStation Camera, players can interact with them, kicking, flicking, and cradling them as they frolic and cower. But on the worlds biggest video game streaming site, Twitch, the stars of The Playroom havent been its robots — theyve been its players.