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Does anyone have Naruto Shippuden Shinobi Rumble? If so I have a question about it, it said it was 1-4 players so does that mean you have to have 4 game cards to play with 4 friends? Or is it just one game card and you use download and play? When I ordered the game online it didn't say, So I was wondering. I hope you guys can help answer my question.