I have googled, searched for hours upon hours. Have gained some info but not totally what Im looking for. For example I find a dutch site which sells 3ds cards: (im dutch) http://www.wasabidxbenelux.nl/categorie/781/dsi_flashcard/ But they don't state anything about GB or GBC games.. and GBA is a bit vague.. I just now read about slot 1 and slot 2 and GBA not working without cardrigdges (meaning roms won't work) Then I read Supercard can play GBA games but is crappy at doing so.. but I dont understand the slot 1 and slot 2 thing.. Could someone who speaks from their experience what the most complete Nintendo 3DS solution would be to play the MOST games possible (pokemon, dbz games most imortant). That includes ALL gameboys. Gameboy normal, pocket, color , advanced, all NDS versions, and 3DS. (well I know no cards can play 3ds roms now.) Snes, nes etc would also be welcome but not 100% needed. Realtime save and fast forward/slomo would be nice aswell. Manyyyyyy thanks to the one who can assist me. Im getting crazy with all the million different Cards, and Lacking of info what they can do.. I find hundreds of different cards, but they don't mention GBC or GB or explain GBA ..