A really great 2-D fighting game. Blazblue C.S is the sequal to Blazblue C.T. In the end of C.T, Nu was about to fuse with Ragna when Noel vermilion( clone of saiya) saved Ragna from death, But was destroyed. Then a new evil approached, captain hazama was really the evil man known as "Terimy " (sorry can't spell his name out) confronted ragna the bloodedge and Noel vermillion. Then madam Rachel Alucard came to their aid.... Blazblue C.S extend is just the add-on version of blazblue C.S. Their are new modes like unlimited mars, Tutorial from Rachel. Plus with a new team battle mode on player match. You can earn "platinum bucks " from doing any game but with it you can purchase additional called for you're character, unlimited mode, and artwork in the gallery. Blanche C.S extend even have new story modes like " the C.T Reconstruction, Sector seven, military school, and more. It is a really great game, but it is sad about the number of people that don't know of this game. Some people tell me that this game is not like " Call of Duty " http://www.youtube.com/watch?v=seFZHD_azEo&feature=youtube_gdata_player