The game’s story begins shortly after the events of Calamity Trigger , following Ragna the Bloodedge's raid on the Novus Orbis Librarium in Kagutsuchi.

: A high-difficulty mode pitting players against "Unlimited" versions of the CPU characters.

: Extend includes a summarized "Calamity Trigger Reconstruction" mode, allowing new players to experience the events of the first game through revised scenarios.

Extend refined the fighting system while expanding the available fighters.

: The story is delivered through a rich visual novel style, featuring branching paths for each character that often intersect.

: Unlike its Steam predecessor, Extend introduced robust online multiplayer and a spectator mode, even on the PlayStation Vita version. BlazBlue: Continuum Shift Extend : Port Report

: The game features 19 characters, including the newcomer Relius Clover and previously released DLC characters like Makoto Nanaya, Valkenhayn R. Hellsing, and Platinum the Trinity.