From the back of the book:
Do RPGs just not do it for you anymore? Do you feel like you're in a movie? Do you feel like you're different? Do you ask yourself questions? Do you want something new? Do you enjoy cartoons? Do you like to laugh? Do you play games? Do you? You do! Then you might be deep in do-do. Toonzy! is for you. The cartoon role playing game.
Comedy, gags, and slapstick are what playing Toonzy! is all about. This is role playing where the joke is the whole point - it's about finding funny solutions to everyday problems.
If you aren't laughing, you might just be the joke!