Grey the Ninelives

Grey the Ninelives was a member of the Gung-Ho Guns, a nearly invulnerable robot. Grey attacked the Floating City along with Leonof the Puppetmaster and Hoppered the Gauntlet. It was opposed by Nicholas D. Wolfwood, who was able to destroy everything but its lower body; however, it still carried enough weaponry to destroy one of the City's plants, helping the City on its way to crashing.

Grey was armed with finger-mounted machine-guns, chest and leg-mounted missile launchers, and more.

Manga

Grey was actually piloted by nine tiny people (hence the epithet "Ninelives"), only two of which ultimately survived.