Silence is deadly.™Think fast and shout your answer...because silence is deadly. Roll the big cubes to get your nine categories, like Contagious Things, Buffet Foods, Hotties or Colors, and then press the brain timer to get your letter and start the game. Take turns naming things in a category that start with that letter, and grab that cube. Hurry before the brain farts and you lose a token. With 54 categories and 21 letters, the game is different each time you play. For 3 or more players, ages 14 to adult.