In 'Hello, Goodbye', players are thrust into the chaotic world of a small town where everyone is mysteriously vanishing. You play as a quirky detective with a knack for puns and an aversion to conventional methods. As you interact with the eccentric inhabitants, you must solve riddles, navigate absurd situations, and ultimately uncover the bizarre reason behind the town's disappearances. Choose dialogue options, explore unexpected plot twists, and decide who to trust—or betray—as the clock ticks down to a dramatic reveal that could change the fate of the entire community.