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2d has 2 dimensions: corners and sides.
3d has 3 dimensions: vortices (corners), sides and faces.
Yes, the 2DS can play 3DS games but just without the 3D.
Yes, the 2DS can play 3DS games as well as DS and DSi games.
Yes, the 2DS can play 3DS games as well as DS and DSi games.
Yes, the Nintendo 2DS is compatible with 3DS games. However, autostereoscopic 3D will not function.
Yes, Pokémon Omega Ruby and Pokémon Alpha Sapphire are 3DS games and therefore they're available to be played on any of the Nintendo 3DS or Nintendo 2DS systems that can play 3DS games and that includes Nintendo 3DS, Nintendo 3DS XL, Nintendo 2DS, the New Nintendo 3DS and the New Nintendo 3DS XL.
Yes, you can. There is a headphone jack for the 3DS and 2DS as well.
No, 3DS games only work on the 3DS and 3DS XL as well as the 2DS
As of October 2013, only the 2DS has been announced
well a 3ds makes the games that are for a 3ds 3D
Yes, the 2DS can play 3DS games since it is basically a 3DS but flat and without 3D.
Yes, the Nintendo 3DS can play DS games as well as 3DS games in 2D
This game was created for the Nintendo 3DS. However, since the 2DS is also part of the 3DS family, it can play it as well, just without the 3D.