grabro
A fictional manned giant robot from the Gundam mechaverse. It first appeared in the Mobile Suit Gundam anime TV series from 1979.
MAM-07 Grabro
Also known as the Grublo, it is an underwater mobile armor designed along similar lines as a submarine, but uses Zeon mobile suit technology to increase its mobility and make it a more effective anti-ship weapon. It was mainly designed for underwater combat mounting torpedo launchers for ship-to-ship or ship-to-shore assaults.
The Grabro was piloted by Flanagan Boone.