It was released in Japan on September 13 , 2007 , in North America on April 20 , 2008 , in Europe on July 4 , 2008 and in Australia on June 19 , 2008 . The two games were released in Japan on September 13 , 2007 , and were released in North America on April 20 , 2008 . They were released in Europe on July 4 , 2008 .