
hoihoi-san
The protagonist from the franchise Ichigeki Sacchu!! HoiHoi-san, Hoihoi-san is a ridiculously overpowered doll built to exterminate cockroaches and other pests.
She has a machine gun.
Since yukkuris are viewed as pests by abuse artists, some of them draw Hoihoi-san as a yukkuri exterminator.