it could be possbile if you overclock the DSi and a much stronger flashcard
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Best DS games: Shin Megami Tensei - Devil Survivor 1/2, KH 358/2 days/Re:Coded, The world ends with you, Pokemon: D/P/PL/SS/W/BW2, Time hollow Waiting for: pokemon x/y ,metroid 3DS (I hope that this will come)