No, dsi games work in a 3ds, wont appear 3d though, but the dsi does not have the ability to play 3ds games.
No, they only work on the 3DS platform. But, you can play DSi and DS games on your 3DS.
The DSi and 3DS can link and work together if they are both playing DS/DSi games. They will NOT link when the 3DS tries to link while playing a 3DS game.
No, 3DS games will only work in a 3DS.
If they were specially designed for the 3DS, no. There is a small tab jutting out of the side of 3DS games making them unplayable on a DSi. Even if you could fit the cards into a DSi, they would not work because they use 3D technology the DSi cannot utilize. DSi games will be playable on the 3DS though.
There is no such thing as a 3DS DSi.
Yes, the Nintendo 3DS (as well as the 3DS XL and 2dS) has its own 3DS games that will not work for the Nintendo DS, Nintendo DS Lite, Nintendo DSi, and Nintendo DSi XL.
No. 3DS games are not compatible with the DSi XL.
The 3DS transfer tool allows you to transfer DSI games from a DSi to a 3DS.
The dsi can play any ds or ds lite games, however 3ds's are the only game systems that 3ds games work in.
No, 3DS games can only be played on the 3DS.
That is not possible. You can transfer DSiWare games from DSi to 3DS, but not the other way around.