Bought this game so I could play it with my son. We have 2 DS's in our house, and he is forever asking me to play against him. HOWEVER, both DS's must have this game in them to play against each other. Thought it would be handy on the plane and vacation. Bummer. Wouldn't have bought it if I had realized we couldn't just do download play. Now, I have to go out and get a 2nd copy of the game!
yes: I recommend this product