What is an r4 card for the Nintendo DS?

Questions about Nintendo DS R4 card?

• 1) Can I play multiplayer online or over bluetooth? EX. If I download Mario Kart onto the R4 card, can I play multiplayer with my friends who have the actually cartridge? 2) Can I trade Pokemon with other people? EX. Can I trade my Pikachu on the R4 card with a Raichu my friend has on his Pokemon Diamond game cartridge? 3) Can I move Pokemon from my GBA Pokemon games onto the the R4 card? 4) Can I use a Pokewalker on the Pokemon I have in the R4 card? THANKS!

• Answer:

  These answers are for Flashcards in general (R4, Acekard, ect.) 1) YES, you can play multiplayer online & locally... There's no Bluetooth support with the 3/DS/i... it's all WiFi. 2) YES, you can trade Pokémon with others... 3) Only if you have a DS / Lite & you play Pokémon Diamond / Pearl / Platinum... since those are the only games that include GBA import support. 4) YES you can use a Pokéwalker on the Pokémon with HeartGold & SilverSoul versions. Flashcards work just like the games you have loaded on it in all aspects, so if you can do it with the retail title, you can do it with a Flashcard.