Killbots

Killbots are robots designed especially for killing, often as either property guarding(BG) in war(1ACV04) or for assassinational needs.(6ACV06) Killbots are not a specific kind of robots per se, and there are multiple types by several different inventors, including Professor Farnsworth and Wernstrom. Killbots are owned and used by both humans and robots.

Technological details
Seeing as there are many types of killbots, the technological details vary, but all known types have some sort of weapon, for example gun, cannon, scythe or hammer, attached to their forearms.

Octillian Killbots
For unknown reasons, a kill limit of 999,999 is hardcoded into killbots. Zapp Brannigan once faced a horde of these killing machines, and defeated them by sacrificing millions of his own men, until the killbots' kill limit was reached. When the kill-limit is reached, killbots become peaceful and in fact rather friendly. However, their kill counter has the option of being reset, which reactivates their ability and desire to kill.

Farnsworth and Wernstrom's Killbots
Their Killbots appeared different from standard Killbots. Despite their name, they don't like killing or aggression.

Mom's Killbots
These Killbots, almost identical to the Killbots Zapp Brannigan faced, start shooting immediately when hearing a word that has to do with weapons. Supposedly, this has been installed to easily activate the killbots on immediate demand, but it also causes troubles, including accidentally shooting eachothers or themselves when talking to eachother.

Appearances

 * (only mentioned in the early animatic)
 * (deleted scene)
 * (at Bender's party)
 * (at Bender's party)
 * (at Bender's party)
 * (at Bender's party)
 * (at Bender's party)
 * (at Bender's party)
 * (at Bender's party)