One Piece Unlimited World Red has extra content that wasn’t in the Japanese 3DS release. A new coliseum mode set in the Corrida Coliseum has Luffy and Trafalgar Law from the Royal Seven Warlords of the Sea teaming up to defeat Donquixote Doflamingo. Law is new to One Piece Unlimited World Red and only playable in Coliseum Mode.
One Piece Unlimited World Red comes out for Wii U, PlayStation 3, and PlayStation Vita on June 12 in Japan. Banda Namco Games plans to release it in North America for all of those systems plus Nintendo 3DS sometime in 2014.