(at least thats what it was called in the UK).
Terrible acting. Predictable Storyline. But who cares when there are stop motion robots beating seven bells out of each other with fists lasers rockets etc...
At one point they fly off in to space and continue the brawl in total silence before falling back to earth.
It's in my bad but brilliant cult movie pile (also including biggles: adventures in time, gremloids and the whole tremors franchise).