I should forewarn you, no one's made a drillzilla replica that "shuffles" like the real one, mine just has really small wheels that exploit the imprecise collision meshes to make it appear to be shuffling.
It would be possible if there was a motor that spun in an elliptical pattern - no clue if that's actually possible.
if it is a single drill, i also assume it will be kinda weak combat-wise.