Gollywhopper Games by Jody Feldman

Twelve-year-old Gil Goodson competes against thousands of other children at
extraordinary puzzles, stunts, and more in hopes of a fresh start for his family, which has been ostracized since his father was falsely accused of embezzling from Golly Toy and Game Company.

For more information, games, and contests related to this book, check out the following web site:
http://www.gollywhoppergames.com/