Kingdom Hearts Birth By Sleep takes place ten years before the first Kingdom Hearts game. It has three playable characters. They are Terra, Aqua, and Ven. Ven looks a lot like Roxas from Kingdom Hearts 2, nobody is sure as to why he does. The cool thing about Birth By Sleep is that since it has three playable characters, it has three story modes to choose from. Another bonus is that if you start Terra's, you don't have to finish it to play as Ven or Aqua. You can just go to theirs and start playing. the battle system is somewhat unique. It is kinda like the one in chain of memories, except the cards do whole actions not just one thing. You can see that it is set ten years before Kingdom Hearts 1 because you see a young Sora and Riku. I do not know when Birth By Sleep is coming out in America.