I learned this game from students in an English class at Meiji University.
In this game participants add words to make a sentence under pressure of time.
Everyone stands in a circle.
One person starts a sentence by saying one word. The next person has five seconds to add a word that continues the sentence, and so on until someone fails to add a word, or adds a word that doesn't work. When that happens -- the group screams, or makes an explosion sound, etc.