Deployed by the UN Forces in the final battle against the Celestial Being, the Alvatore was developed and piloted by Alejandro Corner to fulfil his ambitions of ruling the world. The group known as Innovators was also involved in its development. This huge mobile armor incorporated technologies from the Gundams and was primarily based on the 1 Gundam. However, unlike the highly versatile mobile suit it was based on, the Alvatore has a singular focus on power. This change in specifications seem to be tailored to its mission and with its heavy firepower, it drove the Celestial Being's Gundams and their mothership, the Ptolemaios into a corner.

The source for Alvatore's overwhelming destructive power is the seven GN Drive Taus mounted on its back. The massive output from these GN Drive Taus not only power the mobile armor's beam weaponry, but is also used for the generation of a strong GN Field, granting it high defensive capability against projectiles and beam shots. The Alvatore's main weapon is a high-output, huge beam cannon capable of ultra-long-range attack that is mounted in the front of the machine.