Large Mech 7

Robot big 7 is from Robot 7 movie.

Robot big 7 is more a foce of nature than a Robot 7. Robtob made to amry to Robot big 7. Robtob's fiercely loyal, but none-too-bright attack dog, they would gladly follow his leader into any battle.Of the Robot 7, only Robot big 7 refuses to believe that Robtob is gone for good. Incredibly strong, Robot big 7 carries a payload of mega-bombs, his laser eye attack, and can spew liquid napalm with laser-like accuracy, but they prefers to rip things apart with his bare hands.

In Ultima
Robtob and the mad doctor made Robot big 7 in Circle of the Blot.