SoftUK are selling "Barnyard" for the Nintendo Wii for £12.99.
Use the code "Cheap Games" (without quotes) to get free delivery.
You can get cashback through certain sites (e.g. 2% Free Fivers, making it £12.73). You can also get 6% cashback through SoftUK's 'Collector' program.
The next best price seems to be £15.99 from PowerPlayDirect.
Enter the world of Nickelodeons newest adventure and bring the Barnyard movie to life! Battle the coyote invaders, tee up for a game of golf, target the bulls-eye with your flying chicken and race downhill on your speedy bike. Explore a fully interactive, 3D world and prove you have what it takes to be the biggest party animal of them all. Experience the humour and adventure of the hilarious Barnyard movie!
All your favorite Barnyard characters from the movie
Action-packed games based on the wild antics of Otis and his friends
Exciting free-form gameplay through areas like Walnut Woods, Dankweed Pond and the Barnyard itself