It'sfree at the Poo website. Pictures here are also from that website.
While the game was fun to play with my kids, the point of the game is rather disturbing and gross - though to kids under the age of 12 that probably won't detract from the fun. My kids had a blast. I, however, just thought it was in poor taste.
To sum up: Kids will love it! Adults might find it gross.
Poo was provided to me by Sandstorm Productions LLC and WildFire LLC for review.