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"Ren's Bitter Half" is the fifteenth episode of Season 3 of The Ren & Stimpy Show, and aired on June 4, 1994.



Stimpy's new genetic formula (Xb49) physically splits Ren into his two opposite halves of his personality: "Evil Ren" and (surprisingly) "Indifferent Ren".


The episode begins with Stimpy working in his lab, when Ren comes in, demanding to know what Stimpy is up to. Stimpy shows Ren his buttocks, revealing that he now has three buttocks because of the gene splicing formula, XB-49. Ren likes the idea, but asks why Stimpy hasn't made him dinner. Stimpy advises Ren to be careful with the formula, but Ren shakes it up out of spite. It pops and gets on him. Ren begins to split apart, into two forms, based upon his personality: the villainous Evil Ren and the apathetic Indifferent Ren. Despite his initial horror, Stimpy rejoices, as he now has two best friends, although Evil Ren continues to mercilessly punch Indifferent Ren.

Ren's evil half, Evil Ren, replicates himself into Hideously Evil Ren

Later, the trio watch television. Evil Ren continues to hit his twin. When Stimpy asks Evil Ren to stop, he gets hit. So, Stimpy asks Indifferent Ren to stop getting hit, Indifferent Ren doesn't mind. Stimpy asks if Evil Ren is tired of watching cartoons, which causes him to take the television and throw it at them. A girl scout comes to the door, asking if Evil Ren wants to buy cookies. He chews them up and spits them out into the bag, refusing. Evil Ren then goes back into the house and turns the television on, electrocuting the two.

Later, Stimpy decides to take Indifferent Ren out for a walk. After they leave, Evil Ren bolts the door shut. Twelve hours later, they come home to see that Evil Ren has turned the house into his own lair. They find him on top of a vat of acid, dressed as a dictator/mad scientist. Evil Ren drops Stimpy's favorite record (Happy Happy Joy Joy) into the acid, and Stimpy realizes what he is doing after it dissolves. He then drops Stimpy's favorite catnip mouse, Mousey, into the acid, where it dissolves. Finally, he drops Stimpy's Litter Box, despite Stimpy begging and much to his horror. Stimpy passes out, refusing to believe that Evil Ren is his Ren.

Later he wakes up chained to a metal board with Indifferent Ren. They see Evil Ren mixing together various chemicals, until Stimpy realizes it is XB-49. Stimpy pleads with Evil Ren, saying that without being indifferent, he is becoming corrupted and that the two need each other to function. Evil Ren refuses, spitting in Indifferent Ren's face. Stimpy says that he'll help put them back together, because without being indifferent, Evil Ren is only half a man. For a second, Evil Ren says that Stimpy might have a point, as he's seen a part of himself that no man should ever see, but he reveals his true colors by saying that he likes being evil, dumping the chemical on him. Stimpy fantasizes that if Evil Ren were to replicate himself, he'd be able to create an army and causing a second Holocaust (and possibly a World War III), dooming humanity. Finally, the splitting is done, but leaving Evil Ren with another twin: Hideously Evil Ren. Unlike the other two, Hideously Evil Ren is a female, although very homely and ugly. After seeing her, Evil Ren falls in love, much to the shock of Stimpy while Indifferent Ren remains indifferent.

Some time later, Evil Ren and Hideously Evil Ren get married, with Stimpy and Indifferent Ren as witnesses. They beat each other afterwards and jump into a car and drive off, the metal board Stimpy and Indifferent Ren hooked up to is used in place of cans. Stimpy is joyful at the happy ending but Indifferent Ren says 'who cares?'

Banning from Nickelodeon

This episode has been banned from Nickelodeon due to heavy references to Nazism.


  • It's revealed that two halves make up Ren's personality: being evil and being indifferent. Also, it is suggested that without the influence of being indifferent, Ren would go ultimately evil, as his indifference keeps him from going too far. Ren's indifferent side is pretty much his good side being non-violent, non-aggressive, laid back, calm, mild-mannered and well-behaved.
    • It's also suggested that Ren may have a feminine side, as Hideously Evil Ren is female. Ren's feminine side could be shown by his multiple outrages and emotional mood swings throughout the course of the series, which often appear when he is doing something nefarious.


On Spike airings, the dialogue between Stimpy and Indifferent Ren inside the TV about how mean Evil Ren is was cut.


In one scene, Indifferent Ren's mouth does not move when he says "Whatever".

Watch Episode


The Ren and Stimpy Show S3 E16 - Ren's Bitter Half

Episode List
Big House Blues (Pilot)
Season 1
Stimpy's Big DayThe Big ShotRobin HöekNurse StimpySpace MadnessThe Boy Who Cried RatFire DogsThe Littlest GiantMaroonedUntamed WorldBlack HoleStimpy's Invention
Season 2
Ren's ToothacheRubber Nipple SalesmenSven HoekHaunted HouseMad Dog HoekIn The ArmyMan's Best FriendBig Baby ScamDog ShowMonkey See, Monkey Don'tPowdered Toast ManFake DadOut WestStimpy's Fan ClubThe Great OutdoorsThe Cat That Laid the Golden HairballSon of StimpyA Visit To AnthonyThe Royal Canadian Kilted Yaksmen
Season 3
To Salve And Salve NotA Yard Too FarCircus MidgetsNo Pants TodayRen's PecsAn Abe DividedStimpy's Cartoon ShowLair Of The LummoxJimminy LummoxBassmastersRen's RetirementJerry the Bellybutton ElfRoad ApplesHard Times for HaggisEat My CookiesRen's Bitter Half
Season 4
Hermit RenThe House of Next TuesdayA Friend in Your Face!Blazing EntrailsLumber JerksPrehistoric StimpyFarm HandsMagical Golden Singing CheesesA Hard Day's LuckI Love ChickenPowdered Toast Man vs. Waffle WomanIt's a Dog's LifeEgg YölkeoDouble HeaderThe Scotsman in SpacePixie KingAloha HöekInsomniac RenMy Shiny FriendCheese Rush DaysWiener BaronsGaloot WranglersSuperstitious StimpyTravelogue
Season 5
Ol' Blue NoseStupid Sidekick UnionSpace DoggedFued For SaleHair of the CatCity HicksStimpy's PetRen's BrainBell HopsDog TagsI Was a Teenage StimpyWho's Stupid Now?School MatesDinner PartySammy and MeBig FlakesTerminal StimpyPen PalsThe Last TemptationReverend JackA Scooter for Yaksmas