Didj was a learning system from LeapFrog. Here’s some pictures. There a few dozen games, maybe more. But I feel it’s still useful for game collectors to see
Yo! I've learned that Didj is kinda like the predecessor to the LeapFrog Leapster, in more ways than one. Like the fact that all Didj games work on the Leapster/Leapster Explorer/LeapPad. But not all of their games work on the Didj. Kinda cool!