no you can't play dsi games in ds but you can play ds games in dsi.
The DSi can play DS and DSi games, as well as DSi ware games. It cannot play GameBoy games or 3DS games.
Nope.
Yes, you can play DS lite games on the DSi as well as the DSi XL
A US DSi can play UK games
Yes, they can play the dsi games.
http://snessy.com/
No.
well then u can play ds games but no game boy ur wellcome
No the Snes wasn't backwards compatible. The cartridges were also different shapes.
NES2 U R saying is SNES, the SNES had better Graphics than the NES, the SNES had 3D games but it couldn't play NES games.
No, dsi games work in a 3ds, wont appear 3d though, but the dsi does not have the ability to play 3ds games.