Final Fantasy XIII-2 will have downloadable weapons, costumes, and monsters. One item you can only get by reserving the game at a Lawson convenience store is the Seraphic Wing. This bow/sword for Serah absorbs HP from monsters when Serah attacks them.
What’s confusing about the Seraphic Wing is you may be able to find the weapon in Final Fantasy XIII-2 without reserving the game. In the staff comments, Square Enix says the pre-order bonus has different graphics and coloring.
Final Fantasy XIII-2 comes out for PlayStation 3 and Xbox 360 on December 15 in Japan. Square Enix will release the title a month later on January 31 in North America.