Yes, DS games do work in a DSi XL. The DSi XL is part of the DS line, so DS games are meant to work with it.
No, it will not work on the DSi XL
All of the games that work for any DS will work for DSI XL.
Yes. All DS games work on all DS systems.
Any ds games, including Health coach, can be played on a ds, dsi , or dsi XL and vise versa!I know because i had a ds, but I sold it to get the dsi XL. All the games work.
Yes, The dsi is fully backwords compatible with ds games but not ones that use the gba slot.
No, the DSi XL has its own charger.
It is compatible with all DS games apart from any that require Slot 2, which the DSi and the XL do not have. (There is no such thing as a DSi XL specific game.)
No, only GBA ones. You cannot play regular Gameboy or Gameboy Color games on a DS.
You can get them from game stores like GAME or Gamestation. Remember that there's no such thing as a 'DSi XL' game, they are just 'DS games', though there are a handful of games that only work on DSi, there's none that are XL-only.
There is no such thing as 'DSi XL' games. The closest would be DSiWare, and 'Monster Hunter' which requires a camera. Otherwise, a DS game is a DS game and will work on any model of the DS, DSi and the 3DS too, assuming it doesn't need slot-2.
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.
yes it can
No