i can't figure it out
BUT On 3DS only, you can get the new forms of Thundurus, Tornadus, and Landorus, as well as the new Keldeo(Likely). These are not available to DSi/DS.
The game is also region-locked on the DSi/3DS but not on DS/DS Lite.
Basically, they are both compatible with any type of DS. (Hope This Helps!) :)
Actually, I can answer this for sure. Nintendo Power has said that they will be a DS release. Meaning they will be able to be played on any DS.
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