Unlock Mario Kart DS circuits in multiplayer

On can't unlock them, I think you need to have two Mario Kart DS and two DS, sorry.

I think he wants to talk about when you're playing alone, but we're talking about multiplayer!!!

I'm sorry, but it's not possible.

Hi!
I downloaded my game and I'm doing very well at unlocking circuits. It's true that you need 2 DS and you can only have 1 game. I have a friend who has it too, and I don't insert my card when we play multiplayer, so NO NEED FOR TWO GAMES.

So, I finished the game, and I can tell you what's true and what's false.
First of all, to unlock the characters, you need to finish the game, meaning you must have at least one star in each cup, then you get all the characters and the 150 mirror mode (the same tracks as in 150 but backward)
And for my question, I found the answer, actually, you need two games to manage to unlock all the tracks, but it’s not by playing just once with the two games that you unlock them, you have to always have two games.
There you go, good luck ^^

You're welcome.

But are there any codes to enter to unlock all the characters or all the karts???

To unlock, you need to complete the Grand Prix and finish in 50cc, 100cc, and 150cc (always be first).

Salut, does the game Mario Kart: Double Dash exist on DS? And can you unlock 200cc or more?
Thanks in advance!!!!

Here you go, if you have the action player you win all your games in 5 seconds.

Hello, I'm stuck on the subject. It's true, but I've unlocked everything except Daisy. How can I unlock her?

You cannot unlock circuits if it's in download on
You need to have 2 Mario Kart DS and 2 Nintendo DS (Lite or Standard)

Salut, does the game Mario Kart: Double Dash exist on DS? And is the 200cc mode or higher unlockable?

Comment débloquer des circuits dans Mario Kart DS.

Thank you very much for your responses :)

we cannot

Damn, well yeah I said it earlier, it's all good I have the answer to my question and I gave it,
No need to reply xD I'm leaving the topic for those who might have the same question as me.
But stop talking nonsense after I've said what was right.
mattsatt is completely right!

As everyone says, you can't unlock circuits in Mario Kart DS in multiplayer mode, but when you play against someone who has the game and you do too, all the circuits are available (if both players have unlocked all the circuits). See you!

We're talking about playing multiplayer!! To have all the tracks in multiplayer mode, you need 2 DS and two Mario Kart!! Otherwise, if only one of them has Mario Kart, you won't have all the tracks, that's it.