If you already own a system in the Nintendo DS series, Nintendo 3DS invites you to a world of new experiences but doesn't ask you to forget about your existing favourites.
Almost all existing Nintendo DS and Nintendo DSi games* can be played on a Nintendo 3DS system – and they look and play just like before!
If you downloaded Nintendo DSiWare** games and applications to your Nintendo DSi or Nintendo DSi XL system you can transfer nearly all of these to your Nintendo 3DS system!
*Select Nintendo DS games that use accessories in the Game Boy Advance slot of the Nintendo DS system are not compatible with the Nintendo 3DS system.
**To transfer Nintendo DSiWare games and applications, you'll need to download the Nintendo 3DS System Transfer Tool from the Nintendo DSi Shop to your Nintendo DSi or Nintendo DSi XL system. Additionally, an internet connection is required and the original Nintendo DSi Shop account needs to be intact. You need access to both the original Nintendo DSi or Nintendo DSi XL system as well as the new Nintendo 3DS system in order to make the transfer.