Koko pulls it off is the 23rd episode in Season 1.


Koko fails her test when she bumps the passenger car after Mr. Simpkins falls down. Mr. Simpkins told her not to take the retake when he uses the sentence: "No, you have a retake, next year." Koko gallivants off from her test crying when she met Irving. Irving uses the sentence: "Do you want to be recycled?" and Koko doesn't want to and she told Irving the whole story. Irving then scolded Simpkins for taking things too far by being rude. This prompted Simpkins to apologize for his behavior. Simpkins then asks: "Koko, shall we start the test again?" Koko retakes her test. And most of all, Koko did pass. After the tests, Simpkins promises to behave nicely to chuggers from now on.



Season 1
Can't Catch KokoWilson and the ElephantClunky WilsonKoko and the TunnelBraking BrewsterHodge and the MagnetKoko and the SquirrelsWilson Gets a WashBrewster Goes BananasBang Klang WilsonOld Puffer Pete's TourLate Again, Eddie!Wilson's Smooth MovesCool WilsonThe Chugger ChampionshipAction BrewsterKoko's Puppy TrainingZephie's ZoomaroundKoko On CallOutward Bound OlwinBrewster and the DragonWake Up WilsonBrewster Knows BestKoko Pulls it OffWilson and the Ice CreamWilson's Wacky Tour

Hodge's SecretFrostini's Fruit FandangoZephie Ace ReporterFamous EmeryWatch Out WilsonBrewster's HobbyZephie's Monkey BusinessPoor Old Puffer PeteInspector EmeryNurse WilsonMtambo's Amazing AdventureRock-A-Bye ChatsworthHelpful HodgeBrewster to the RescueWilson and the Paint WagonEddie Finds TimeMtambo's Royal TourWilson and the Wild WindOld Puffer Pete's Firebox Jet Pack WilsonBrewster's Little HelperBubbly OlwinKoko Takes ChargeWilson's Paper TrailOld Puffer Pete's Big ShowTraining Time, Harrison