The Leap Frog Leapster Learning System Bratz World The Jet Set Game Cartridge is a new educational toy designed for children in 3rd and 4th grade. This interactive game cartridge, released in 2004, features the popular Bratz character family and focuses on subjects such as spelling, math, and geography. With its engaging gameplay and educational content, this game cartridge is sure to provide hours of fun and learning for children ages 8-11 years old. The LeapFrog brand ensures high-quality educational products that are both entertaining and effective in helping kids learn.