Kolossus was a massive war robot who lay embedded in rock on the Ruby Moon of Doom for a million years. In addition to his massive size he had a laser mounted on his forehead which could pulverize boulders as large as his own torso. He came with a remote control that could fold him up into a small handheld cube.
The natives of the Ruby Moon's planet kidnapped several Earthlings and turned them into robotic slaves for the purpose of digging out Kolossus so that he in turn could invade and conquer Earth. However, Pedrobot managed to make himself large through sheer willpower or something and entered hand-to-hand combat with the behemoth. Making a tactical retreat, Pedrobot stumbled upon the remote and, thinking it was a ray gun, folded up Kolossus and became a hero yet again.