All Star Battle

All Star Battle (オールスターバトル), also known as the Jojo Gamer (ジョジョゲーマー) and affectionately nicknamed "Star" (スター) is one of Kamen Rider Con-Soul's support robots. When she uses the All Star Battle Gashat in her Gamer Driver, it can fuse with her to activate Jojo Gamer Level 3.

Game Description
JoJo's Bizarre Adventure: All Star Battle is a 3D fighting game in which players can fight against each other using characters taken from all eight current story arcs from Hirohiko Araki's JoJo's Bizarre Adventure manga series (and one from a prior work by Araki), fighting in various locations taken from the manga.