!!The Hanna-Barbera series contains examples of:
* EarWorm:
** Both theme songs, especially [[https://www.youtube.com/watch?v=FX4loOmwBsA the second one]] for adding lyrics.
** Quite a few of the songs in the MusicalEpisode "Garbage Night: The Musical" are catchy as hell.
* TheScrappy: ''Nobody'' likes Brattina. [[IntendedAudienceReaction This was probably intentional.]]
* TastesLikeDiabetes: Bright Eyes and Whopper in the second season. Hell, the ''entire'' second season can be a bit saccharine.
* VillainDecay: Katrina was originally a fairly cunning opponent, willing to go to any lengths to harm/destroy the Pups. However, her motive was altered to simply "locking them all up FOREVER" after she got control of the pound in the second season... possibly because the cunning Katrina would've been a ''much'' greater threat.