Guilty Gear XX Accent Core Plus is a fighting game for the Nintendo Wii that expands on the narrative established in Guilty Gear XX. The game features an enhanced Story mode where players engage with character-specific arcs that delve into the mysteries surrounding Gears and the antagonist known as That Man. Utilizing a branching path system, it offers 350 unique scenarios. The introduction of the NPC scientist Crow adds new challenges as he employs clones of Justice against the characters.
Λ Core Plus also features a new Story mode. The story is a continuation of the storyline from Guilty Gear XX. All characters have a storyline, and the stories cover the major events involving the mystery of Gears, `That Man` and conflict with the Post War Administration Bureau, etc. The mode uses a full branching path Zapping system with a total of 350 scenarios. The game also introduces a new NPC character: the Post War Administration Bureau scientist Crow, who attacks the cast in the Story mode using mindless clones of Justice.