In 'Chrono Chums: Who's There?', players take on the role of a quirky time-traveling protagonist who accidentally shatters the timeline while trying to prove that time travel is real. Each chapter unfolds in a different era, from the flamboyant Roaring Twenties to the uncertain future where sentient robots reign. Players must interact with historical figures who are oddly familiar yet suspiciously altered, solving quirky puzzles and uncovering the reasons behind why certain events are changing. The catch? The protagonist is accompanied by their past self, which creates hilarious misunderstandings as both versions try to navigate their chaotic journey while figuring out who's really pulling the strings in the timeline. Will they restore history, or will they create a new reality that even they can't comprehend?