 On February 9 , 2007 , One was released playable on FOMA cell phones via a Java program by NTT DoCoMo . A second mobile release playable on au mobile phones was released on March 1 , 2007 by KDDI . A third mobile release , also playable on FOMA cell phones , was released by SoftBank Mobile on July 2 , 2007 . The last release by Nexton was on June 1 , 2007 as a Windows Vista compatible edition for the PC . <unk> released the full @-@ voice , Vista @-@ compatible edition of One as a downloadable version on February 26 , 2010 . The version for the PlayStation , and the mobile versions released by KDDI and SoftBank Mobile did not contain adult material . A promotional video for the game is still available for download at Tactics ' One website . 
