In this game, players take on the role of a glass that's being filled with increasingly happy thoughts. The objective is to remain full and avoid spilling over as a steady stream of emotions pours in.
The gameplay involves reacting to different emotional stimuli, which come in the form of various icons and symbols. The player must carefully manage their glass's capacity, letting in the right amount of happiness while keeping it from overflowing. The game runs in the browser, requiring no download or registration, and is designed to be played in short sessions.