Changing Emotions (also known as Changing Room) is a game that appeared on both the British and American editions of Whose Line Is It Anyway. It is akin to Multiple Personalities.
In this game there are given props that are incorporated in the scene and whoever held that proper would have to act with that given emotion, such as anger or lust.
Generally, at the end of the game one performer would wind up with all of the props and try to act out multiple emotions at once. That usually brought about hilarity.