Both are awesome, i don't play, but pokemon made me a buck today when I sold 10 cards to this guy in may speech class.
Nah, I don't like ds... But wait... my bro got a 3ds!!!! I will force him to buy a Pokemon game >:] But seriously... anyone knows if you can play one? =P
That cost money, you should try going to www.pokemon.com then go under the tcgo (trading card game online and play against others)
And they give you packs to start off with but if you want more you will have to go buy booster packs at walmart/ target.
http://www.coolrom.com/ download the gameboy emulator or any of the others, download a game, click load and choose the downloaded game and you should be able to play pokemon (if thats the one you downloaded)
*cough cough* We aren't supposed to support piracy here, despite what our personal feelings are about it.