Yeah I've got it, but I haven't used the WiFi feature because the multiplayer is more fun
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But, I'd assume if you'd like to find a specific person to battle you'd need to punch in a friend code of some sort. If it doesn't allow such an option then that's just bad design on the developer's part and you should have bought the 360 version if you wanted to play online
BTW I can't use my Wii right now.