This fall Japan gets the DS version of Grand Theft Auto: Chinatown Wars and it's rated CERO Z, that's like the equivalent of being rated AO by the ESRB.
All of the Grand Theft Auto games have been rated CERO Z so this isn't really a shocker. However, Chinatown Wars will be the first Nintendo DS game with the rating and the second CERO Z game on a Nintendo platform. Killer 7 from Capcom is the other CERO Z rated game on Nintendo hardware.
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