Primm Slim is a guard robot, historian, and caretaker for the Vikki and Vance Casino. Primm Slim is also a huge source of information for the Courier and will speak at great lengths about Primm, Vikki, Vance, and the casino.
Yahoo! I ain't had a chance to tell their tale in a mess of years. First things first: any bosh you've heard about Vikki and Vance being copycats ain't nothing but ill-tempered slander. Fact is, they begun their crime spree two days before Bonnie and Clyde robbed their first bank - so who was copying who. Now true, Vikki and Vance didn't exactly cut a wide swath of murder and bank robbery across the central U.S., like Bonnie and Clyde did. It was more like a narrow swath of shoplifting, check-cashing fraud, and gas pump driveoffs - but crime is crime! They drove reckless, too. Having lived by the gun - well, Vance owned one, anyway - it was only fitting that the duo of desperados would die by the gun. Perhaps it was fate itself that accidentally drove them into a crossfire between police and a gang of bank robbers in Plano, Texas. Or maybe they just didn't notice until it was too late. It's been said that Vikki would have tried to cash a bad check in that bank, had she lived. We'll never know for sure. All we know is that the crossfire tore the car and both occupants to pieces, and the police issued an official apology. You can put your eyes on the genuine Death Car just over yonder, and there's Vance's machine gun in the case next to it!
Primm Slim has a ridiculous amount of health that increases with the player's level. In fact, he is the single most durable character in the game.
Despite being durable, Slim lacks an attack mode, which leaves him unable to retaliate. However, attacking him will cause the rest of the Primm citizens to become hostile.
If Primm Slim is made sheriff, he can be heard on Radio New Vegas. Humorously, he does not appear to know the name of the town where he is sheriff, due to a missing data token.
Once made sheriff, he will make one patrol around Primm and then stand near the Bison Steve Hotel for the rest of the game, to the right of the building, underneath the coaster tracks by a garbage bin.
If the player did not kill the convicts on the roller coaster near the Bison Steve hotel, they may attack Primm Slim after his patrol; Slim can eventually die since he cannot defend himself.
He may also be found wandering the Mojave Wasteland, though this is rare.
After taking Vance's 9mm SMG, he will say "Always good to see you, pardner! Anything I can help you with?", but he won't initiate conversation. If this occurs before a sheriff is chosen by the player, it may remove Primm Slim as a candidate.