The One Piece: Pirate Warriors 2 is now available on the Japanese PlayStation Network (click here for instructions on how to get it). It features Luffy and Law as playable characters and even has a co-op mode! Saiyan Island’s Kaitou has downloaded the demo and recorded video showing off the opening and gameplay from it below. You’ll see that when Luffy uses Haki, Usopp pops out for a few seconds. For Law, Zoro does the same.
One Piece: Pirate Warriors 2 is an action/adventure in development by Tecmo Koei’s Omega Force. The game will be published by Namco Bandai Games in Japan (PS3/PSVita) on March 20, 2013 and Europe/North America (PS3 only) sometime in the summer of 2013.