The GF13-017NJII God Gundam is the titular Mobile Fighter of Mobile Fighter G Gundam. It was the second Mobile Fighter used by Neo Japan in the 13th Gundam Fight, and is piloted by Domon Kasshu.
The successor of the GF13-017NJ Shining Gundam, the God Gundam was developed by Dr. Mikamura almost single-handedly and customized for Domon Kasshu. Even in Normal Mode, its power surpassed that of the Shining Gundam's Super Mode. In addition, it could achieve an even more powerful state called Hyper Mode.
Its chest was equipped with the Energy Multiplier System, a unique system that allowed energy to be refined in a similar manner to Qi. When piloted by Domon, the King of Heart emblem would appear upon it. It was part of a larger system called the Artificial Aura Generator. The six Core Lander wings on its back and the two short antennas on its head served as magnetic field generating devices, while the two long antennas functioned as intelligence-gathering devices.