No, 3DS games only work in a 3DS or 3DS XL.
No, 3DS games only work on the 3DS and 3DS XL as well as the 2DS
In comparison to the 3DS, the 3DS XL is much larger with a bigger screen. The 3DS games work just the same in both consoles.
No. 3DS games are not compatible with the DSi XL.
Of course. The 3DS XL is just bigger. It can still play normal DS and 3DS games.
Yes, the 3DS are backwards compatible.
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.
There are no '3DS XL' specific games. There are only '3DS games'. The XL is simply a larger model of the 3DS, not a new device.
You'd have to use system transfer to migrate your ID from the 3DS to the 3DS XL before you can access your downloaded games on it.
yes
The 3DS steering wheel was designed to work with the regular sized 3DS only, an XL is too big for it. You'd have to look for one that is specifically designed for the 3DS XL.
No, you must have the original 3DS with the ambassador program. The only way to transfer the ambassador games to the 3DS XL is by doing a system transfer, from the 3DS to the 3DS XL, which requires both systems.