History Main / SetAMookToKillAMook

** ''VideoGame/FarCry3'': Predatory animals will attack any humans that come near them, whether that be you or an enemy (though they tend to prioritize you if given a choice). Conveniently, many outposts (which require killing all enemies to liberate) have a cage with some sort of dangerous animal (such as a bear or a tiger) in it. By staying out of sight and shooting the cage, you release the animal, which will then proceed to murder everyone in the outpost single-handedly.

** ''VideoGame/BlackMesa'': If you grab a gun turret without setting it off first, it will be reprogrammed to shoot everything that moves[[note]]you included, so be careful[[/note]], even the HECU soldiers.
** n ''VideoGame/HalfLife2'':

** The Necromancer's Confusion curse in ''VideoGame/Diablo2'' causes enemies to attack randomly, and of course can be used on a crowd to turn them against each other. There is also the Attract curse, which causes all enemies to attack the cursed target. Necromancers can also raise defeated enemies from the dead as their minions.

* ''VideoGame/RomanceOfTheThreeKingdoms'': In some of the games, there's a "Mislead" or similar tactic where a general attempts to trick an enemy general into fighting an ally, with one or both units taking damage. Since the success or failure of the tactic is usually based on Intelligence, and the damage done is based on a War or Leadership stat, many of the [[DumbMuscle dumb]] [[TheBigGuy ox]] officers can be hilariously lethal to their own side. Never, ever stand too close to Zhang Fei or [[SmashMook Lu Bu]] if the enemy has a sharp "strategist" officer hiding in the back.

*** Enemies are immune to friendly fire from each other's melee attacks, but not from ranged attacks. Thus, it's possible to position yourself so as to make the {{Mooks}} you're fighting absorb the arrow fire of the archers sniping at you, and when an enemy tries to throw a rock or barrel at you it's quite possible for them to miss and hit and injure or kill another foe.

** ''VideoGame/PlantsVsZombies2ItsAboutTime'' has the dinosaurs in [[OneMillionBC Jurassic Marsh]]. They [[InvincibleMinorMinion cannot be harmed by the plants]], and they initially help the zombies by [[DungeonBypass pushing them further into the lawn]]. Using the Perfume-Shroom on the dinosaurs turns them against the zombies, causing them to attack and OneHitKill the zombies instead.

*** Antlions will viciously attack you in drones whenever you're on their sandy turfs. But once you obtain the pheropod "bug bait" from the Vortigaunts, you can then turn the antlions into your helpful allies. They'll attack any enemy in your way, which includes Combine soldiers, turrets, manhacks, zombies, and even headcrabs.

* ''VideoGame/{{Doom}}'': This is a major feature, although not made explicit through any particular power-up or ability. It was implemented in [[http://doomwiki.org/wiki/Monster_infighting quite a simple way]]: if an enemy is damaged by another, it will stop targeting the player and instead focus on attacking whoever hurt it. There are a few restrictions, though: enemies are immune to their own kind's non-{{Hitscan}} projectiles (though they can still be damaged indirectly by an ExplodingBarrel), and Archviles won't be targeted by other enemies (they'll still retaliate, and even better, have no cooldown time before switching targets, though this will usually be followed by the victim immediately being revived). This can be very useful in the hands of a skilled player, and some levels are even designed around exploiting this:
** The first level of Episode 3 in the first game, Hell Keep, starts you with a pistol and not much ammo with which to gun down all the imps in the first courtyard. Fortunately, it's easy to set up them up to shoot up or get killed by the cacodemons in the next room.

** Judges 7: Gideon, after having his 32,000 men pared down to 300 by weeding out the ones without good defensive instincts, gave each man a pitcher with torches inside and a shofar and told them to do like he did. When they reached the edge of the Midianite camp, he blew his shofar, and the others did the same, and they all broke their pitchers and shouted, "The sword of God and of Gideon!" This set the Midianites fighting each other and fleeing.
** 1 Samuel 14: Jonathan and his armorbearer went up to fight the Philistines, reasoning that God is just as good at saving His people through a few as He is through many. By the time Saul and the 600 with him reached the battle, he found that the Philistines were fighting each other in their confusion.

** ''VideoGame/FinalFantasyVI'': Edgar's Noiseblaster does no damage but [[BrownNote inflicts Confusion]] upon the entire enemy party. As most of the enemies even late in the game are vulnerable to it, this can wind up being his BoringButPractical WeaponOfChoice.

* Toward the end of the Subway level in ''Perfect Dark Zero'', there's an option of stealthily shooting either a member of Killian's gang or a dataDyne soldier to provoke a firefight between the two groups.

%%* ''VideoGame/PerfectDark'': The Psychosis Gun can only be normally found in one mission. Fortunately, that one mission contains a single guard inexplicably armed with [[GunsAkimbo dual]] [[OneHitKill Golden Magnums]], who seems to have been placed there for the explicit purpose of being turned to your side.%%Explain what the gun does. This description talks about everything except about how it's an example.
%%** It does have its own cheat specifically for its use in any mission. Unfortunately, the Infinite Ammo cheats don't apply to it, and you only get four shots, and the one or two mooks on your side will probably get mowed down by the five or so you fight at a time anyway.
%%** Toward the end of the Subway level in ''Perfect Dark Zero'', there's an option of stealthily shooting either a member of Killian's gang or a dataDyne soldier and causing a firefight.

[[quoteright:276: [[VideoGame/{{Prototype}} https://static.tvtropes.org/pmwiki/pub/images/b7e7600224f1465ed5ffc5b4e55f4246.png]]]]
[[caption-width-right:276:That's him! He's the one you want!]]

%%* ''VideoGame/NetHack'': A ring of conflict does this; unfortunately, it also makes peaceful or friendly monsters attack you.%%What does it do?

* ''VideoGame/FTLFasterThanLight'': The Advanced Edition introduces the Mind Control system, which temporarily forces an enemy crew member to attack its allies or ship's systems (or repair or man your systems, if they're boarding your ship). More points in the system increase the duration and give the mind-controlled crewer a health bonus. It also introduces Hacking Drones, which hack the systems of an enemy ship. Some systems are merely shut down, but hacked [=O2=] systems suck oxygen ''out'' of the enemy ship, while hacked Medbays hurt instead of healing, both of which qualify for this trope. For bonus points, hacking an enemy Mind Control system [[UpToEleven causes it to Mind Control a random enemy crewer into fighting for you!]]

* ''Franchise/MarvelUniverse'': A crossover between ComicBook/ThePunisher and ComicBook/CaptainAmerica has Frank perform an accidental version when he throws a knife at a machine-gun wielding soldier, whose finger locks up on the trigger and shoots several of his comrades despite being dead.

[[folder:Other/Unsorted]]
* ''VideoGame/RiseAndFall'': Cleopatra has a special power which makes enemy units around here switch to her side, when they switch they instantly start to attack what was their own army.
[[/folder]]

* ''VideoGame/{{Robots}}'' is played by tricking the robots/Daleks into colliding with each other as they attempt to close in on the player.