It won't fit in a DS or a DSi, there is a tab on the 3DS game to stop it.
Nothing, as a 3DS game will not fit into a Ds slot. FOr downloaded games you will not see it
A 3DS can play regular DS games. The only things it can't play are those that require a DS's slot-2, such as Guitar Hero. Everything else works fine.
No, it will not be in 3D.
From what I know, no. The 3DS games have a something on the game card that doesn't let you put it in on other DS systems. To play Animal Crossing 3DS, you would need to buy a 3DS.
You buy ds or 3ds games and then put them in your 3ds.
When using a regular DS game on the 3DS, the 3D slider does nothing.
No the 3DS game cards are shaped slightly different then the Nintendo Ds. Of course if you could put the 3DS game cards in the Ds lite it would still not work because the features and intense graphics the nintendo 3DS requires for games can't be used on the Ds lite. Don't buy 3DS games for the Ds lite as it just won't work. You can consider buying a 3DS however as the 3DS is backwards compatible with all DS games.
You can play a DS game on a 3ds but you won't see the game as 3d even with the selection on.
any ds or 3ds game can be played on any 3ds system.
There is no 3DS-exclusive Brain Age game, but you could play the DS Brain Age game on a 3DS.
its on both the nintendo and the 3ds
No, it is a 3DS game.