What is a Nintendo DS 2?
Nintendo DS 2? I never heard of that. I only heard of Nintendo DS (the original one) and the Nintendo DS Lite
The Nintendo DS is fully backward compatible with Nintendo DS games; however, the Nintendo 3DS does not have Slot 2, as seen on the Nintendo DS and Nintendo DS Lite, so those features will not be supported. Additionally, DSiWare games will be available to download on the Nintendo 3DS after the software update in May 2011.