From the introduction:
Clown Cops is a weird roleplaying game where you play a Clown Cop - a former clown who is now employed as a special kind of police officer. Your beat is the quaint neighborhood of Palookaville (aka Clown Town), an area almost entirely populated by Clowns, Mimes and other circus performers.
In addition to pencils, paper, and dice, each player needs a box of animal crackers, a glass of milk, and a rubber band. The rules also call for clown makeup/clothing, and "fun stuff" like balloons, noisemakers, etc.