User blog comment:Scooter8pie/Brown Mob and the Colorwood Experiment/@comment-4583259-20111125204028/@comment-4583259-20111127135421

If you can't shoot it from above, what happens if you place a turret next to it? Then you could be standing on a higher level, and let the turret do the dirty work. The turret won't push the mob into the wall because turrets don't move.

I'll try this myself, but getting the new materials isn't a high priority so I'm not going to get to it anytime soon.