Guilty Gear XX Accent Core Plus is a fighting game for the PlayStation Portable that expands on the narrative of Guilty Gear XX. It features a new Story mode with a branching path system, presenting 350 scenarios that delve into the mysteries of Gears, the enigmatic figure of That Man, and the conflicts with the Post War Administration Bureau. Additionally, players encounter a new NPC, Crow, who utilizes clones of Justice in the storyline.
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.