The first arcade revision of Continuum Shift, entitled BlazBlue: Continuum Shift II, was released in arcades on December 9, 2010. It features all the console exclusive characters, numerous balance changes, and other cosmetic changes such as a new announcer.
Toshimichi Mori, the game's producer, confirms that Continuum Shift II was released as a free downloadable update for both PlayStation 3 & Xbox 360 versions of BlazBlue: Continuum Shift on May 10, 2011 for both the Japanese and English Xbox 360 versions and on May 12, 2011 for the Japanese PlayStation 3 version. The PS3 US version was released on May 17, 2011 and the European version was released on May 25, 2011.
The PlayStation Portable and Nintendo 3DS
ports of the game, released in Japan on March 31, 2011, include all the
characters released as downloadable content (Makoto Nanaya, Valkenhayn
R. Hellsing, and Platinum the Trinity) with possible new story elements
for them, a new mode called "Abyss", and balance tweaks as well.
A software update for the Japanese arcade version of Continuum Shift
II was released on July 15, 2011. It included changes in the display of
player information at the VS screen and also allowed for Calamity
Trigger stages to be used in tournament play. Another update was
released on Winter 2011, which included several new balance changes and
one new character (Relius Clover).