* AlternativeCharacterInterpretation: Malicious, evil bully or hero who merely takes his love of fun a bit too far and ends up in trouble for it?
* EarWorm: [[BrokenBase Say what you want]] [[LoveItOrHateIt about the 2009/2013 series]] but you have to admit the theme song is rather [[https://www.youtube.com/watch?v=ZWehAoitOV0 catchy]].
* FandomRivalry[=/=]InternetBackdraft: Debates between this Dennis the Menace and [[ComicStrip/DennistheMenaceUS the U.S. strip]] [[TheNamesTheSame of the same name]] can get ''incredibly'' heated.
* MagnificentBastard: Roger the Dodger, whenever he appears in an antagonistic role.
* StockFootageFailure: The episode "Leg Cuffed" when Angel Face is in the sack race she can be seen still sitting in the stands.
* TheyWastedAPerfectlyGoodCharacter: For a character that was hyped up so much, Angel Face is surprisingly underused in the 2013 series.
** Averted in TheBeano though. Angel Face has her own comic strip.
** The earlier strips had Dennis' Dad almost continuously spanking him with a slipper, usually to no effect; the only thing that could make an impression was Granny's legendary "Demon Whacker" slipper made from the hide of an African Elephant. This was phased out as corporal punishment of children fell out of favour.
** In one old strip, Dennis' Dad spanks him for falling in luminous paint, even though it was an accident. In another, Dennis leaves home, and his parents repeatedly appeal for him to come home, but when he does, it turns out they wanted him back because he had accidentally taken the Darts Club funds with him -- there's no indication that they were worried about their only child (then he gets spanked for running away).
* ViewerGenderConfusion: The gender Foo Foo, Walter's pet poodle, seems inconsistent. It isn't just GenderEqualsBreed expectations, Foo Foo also wears a [[TertiarySexualCharacteristics pink ribbon]], so many readers thought it was female, but the dog was usually referred to with male pronouns in the comics. However, in the animated TV series Foo Foo was referred to as female.
* UnfortunateImplications: In the early cartoons and comics, Walter the Softy was picked on because he was effeminate, shy, delicate, physically weak, and essentially bucked gender roles. This gives the nasty impression, given Dennis's sympathetic portrayal, that we are supposed to applaud Dennis for punishing Walter for being different. Later works made Walter more despicable to compensate for this, sometimes making him snobbish and condescending, and others making him actively malevolent and simply using the facade of delicateness to avoid grown-ups' scrutiny.