The Didj games look like the handheld games that you might find on the Nintendo DS or Sony's PSP, but unlike those other handheld games, the Didj games weave educational content into the video gaming. It's called the DIDJ CUSTOM GAMING SYSTEM, and it brings educational gaming to kids ages 6 to 10. For kids who've been weaned on Leapster educational video games, there's a new system for them when they outgrow the Leapster's content.