The odd robot couple, Heavy and Metal, both have a slight glitch in their operating systems. Instead of working in the Lithium-Mines on Mars, they are running through underground caverns, searching for adventure, thrills and a new high score.

The odd robot couple, Heavy and Metal, both have a slight glitch in their operating systems. Instead of working in the Lithium-Mines on Mars, they are running through underground caverns, searching for adventure, thrills and a new high score.