Artificial Stupidity / Survival Horror

• Enemies in The Persistence are easily led into exploding traps, even after all their friends were killed the same way. They also will always run straight towards you and bludgeon you even when they have ranged attacks.
• Your AI partners in Resident Evil: Outbreak make Sheva Alomar and Eileen Galvin look like geniuses. Especially in file 2, they'll constantly waste ammo either by aiming badly or keep on firing after the enemy is down, and that's when they bother to attack at all instead of just hanging around waiting for the zombies to eat them. They'll often give up precious healing items to pick up useless empty clips or broken sticks. Their only purpose is to lug around your ammo and herbs, so you'll be spending a good chunk of time managing their inventories for them, maybe taking that useless empty revolver from them to exchange it for a first-aid spray. Just run like hell out of the room afterward to avoid them picking the gun back up and putting down shotgun shells.
• In the very beginning of Resident Evil 4, there is a section of tripwire that will detonate upon contact with either the player or enemies. The pissed-off villagers apparently forgot who set the explosives in the first place, because they will run right into it and kill themselves if you position yourself right. Also happens with dynamite: On some occasions, if you get close to dynamite-throwing Ganados, they may rush at you and try to grab you. They may or may not have lit the fuse to said dynamite. They might also gesture and shout orders/alerts to their comrades, often standing among them with a sparking stick of dynamite. Of course, this and the above example make a bit more sense when you realize Las Plagas is likely turning their higher reasoning capabilities into Swiss cheese.
• Resident Evil 5.
  • Sometimes the AI is great, picking off enemies with relative efficiency with reasonable choices in weapons. Other times, if you're laying claymore mines to set up a dastardly trap while fighting a big boss, the AI will quietly follow in your footsteps picking them up because obviously you accidentally dropped them.
  • Sheva's AI reaches the pinnacle of stupidity in the first battle with Wesker. First she stands still and gets badly injured (or killed on the higher difficulties), then runs off to hide, then TRIES TO FIGHT Jill ALONE and, as a result, dies. If she's lucky enough to survive, then she'll try to link up with you, leaving her side of the fight unfinished and bringing a very dangerous combatant with her to help Wesker. You cannot complete this fight solo without hiding.
  • Sheva is also notorious for her refusal to use any weapon heavier than a pistol as long as she has ammo for it. She's programmed to conserve ammunition for the more valuable guns, which is reasonable enough, but this means she'll constantly stick to firing away with the weakest weapon in the game, even in boss fights, and even if she has a few hundred shotgun shells or a Hand Cannon with Bottomless Magazines in her back pocket. It gets really obvious when she runs out of pistol rounds, then, instead of pulling out that massive assault rifle you gave her, she runs over to an ammo crate and breaks it open to get more pistol rounds to be emptied futilely into the side of a building-sized virus monster.
    • This, however, only applies if the partner is set to "Cover", the default setting. If you set her to "Attack" instead, she'll happily use stronger weapons to get the job done (though this does tend to result in her getting a case of Suicidal Overconfidence and, once one enemy group is cleared out, rushing on ahead to take on another enemy group further on instead of waiting until you encounter them).
  • In an aversion, if you give Sheva a Sniper Rifle and a handgun and keep her relatively stocked with ammo, she manages to become relatively useful.
  • The AI does not understand how explosives work. At all. No matter how many you give it, no matter what the situation, no matter if you take all of its other weapons away, your AI partner will never, ever use grenades, grenade launchers, or mines. The game never tells you this, and your partner will still happily clog their inventory with items they won't use, though.

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