The Z.G.G otherwise known as the Z-tech Garden Grievance (or Grievous) is one of the Zombies most powerful weapons, created to take out anything nature like or plant like.
It's filled to the brim with explosives, planticides, fungicides and weed sprays to make sure anything in it's enormous radius is eradicated or destroyed completely, and anything that tries to destroy it are meet with a titanium armored case. This Nuclear device is so dangerous that even after the explosion that area is inhabitable for
any plant, mushroom or human for a long period of time. Luckily they take alot of time to produce in turn, so they're usually a last resort plan or a way to clear off any small rebellions.
Requested by Nyan.Nyanbonecrush