The downloaded games are saved in your MobiGo’s short-term memory, and they will be erased when you turn the power off, or when you insert or remove a game cartridge. To play the games again, please go to your computer where they are permanently stored and simply transfer them back onto your MobiGo. You can also buy the MobiGo Game Storage cartridge. This cartridge is like a memory card for your MobiGo. With it, you can store all of your downloadable games permanently and take them with you wherever you go. Visit http://www.vtechkids.ca/en/product/detail/53 to buy yours today! The Game Storage cartridge is only available on the MobiGo model, not the MobiGo 2.