LeapFrog is best-known for its cutting-edge educational toys that don't compromise on fun. They are perennial favorites and award winners.

Every notebook that comes with the $80 LeapFrog Fly Fusion pen has this music-making console on the back, so you too can lay some breaks and beats yourself when it goes on sale next week.

LeapFrog Enterprises, the California-based toymaker whose sales of educational toys have tumbled this year, is hoping to bounce back with an invention they are calling the first “pentop computer.” ...