One Piece Grand Collection, the social game based on the popular manga/anime series One Piece, now has 2 million registered users on Mobage. The title was launched by DeNA partner Namco Bandai just 17 days ago.
It took the social figure collection game, which features various characters from One Piece as virtual figures, just four days to pick up the first million users.
One Piece Grand Collection is available on Mobage for features phones and smartphones.
Via Social Game Info
