Leapster connects to the internet with a USB connection. It connects to a site where kids can cash in their tokens or points or whatever for 'prizes' there. Im not sure what exactly. You can also upload art they have created in the Leapster & print it out or modify it. It uploads the data about the games they have been playing and parents can see how they are doing, where they are improving (with Leapster 2 games, not regular Leapster games). Not not sure but I think the Leapster 2 games have an enhanced thing where they can play some of the game on the computer, like L-Max plays on TV, but I could be wrong with that.
Leapster 2 plays all the regular Leapster games as well.