Old Woman

The Old Woman is a walking weapon.

Armageddon version
The Old Lady works much like a Sheep, save that she is considered a special weapon and deals much more damage. She is also much slower.

3D version
This old dear is good for getting those "hard-to-reach" foes. Her ability to cunningly navigate (albeit very slowly) around parts of the landscape. With your aid, she could cause more chaos than pension collection day!

Since there is the ability to manually navigate it is always better to try and get your explosion to occur on the side which is facing away from a high ledge or watery front, this way when she pops her clogs the enemy should be propelled to certain doom (be it off a cliff face or into the water, dependant on the enemy locale).

Trivia

 * The Old Woman is one of the few weapons that can collect Crates: The other ones are Sheep, Super Sheep, Mole, Skunk and Inflatable Scouser.