The DS is only able to handle the absolutely, completely, pitifully-useless WEP encryption method.
Even if you invest in a DSi, which supports WPA, any pre-DSi online games still can't use it.
That sucks.
...The end!
Even if you invest in a DSi, which supports WPA, any pre-DSi online games still can't use it.
That sucks.
...The end!