Archive Panic: The original theatrical cartoons combined amount to 469 shorts total (not including shorts initially released as part of a bigger feature, such as the shorts in The Reluctant Dragon, Saludos Amigos, The Three Caballeros and the '40s Disney package features) and that number shoots up to 562 if you include all of the silent Disney films (the Newman Laugh-O-Grams, the Alice Comedies and Oswald the Lucky Rabbit)note although only around 50 of the 93 silent Disney films survive, are available or are known to exist — to watch all of them in chronological order would take around 66 hours and 30 minutes, or close to three days without sleep. And that's not counting post-Golden Age shorts, TV shows and feature animation appearances of the characters. And lets not even get started on the absolutely monstrous number of comics these characters have appeared in, especially the Donald Duck comics.
Toby Tortoise Returns is an oddball in the Silly Symphonies lineup-wheras most, if not all of those shorts were either sweet, sentimental and naturalistic, this short has much more in common with a Warner Bros. cartoon, complete with full cartoony, fast paced slapstick comedy.
Mickey Mouse's "Runaway Brain" from the 90's, which was the first (but certainly notthe last) attempt at returning Mickey to his adventureous, edgier roots. Whether it succeeded or not is up for debate.
The later Donald Duck shorts from the '50s and onward show how desperate the writers were to come up with new ideas-one short has Donald become so obsessed with obtaining honey that he dresses up as a bee to steal honey from an actual hive, instead of just going to the store and buying some honey in a jar like any sane man duck would do.
There's also the Silly Symphonies short "Mother Goose Goes Hollywood", which is yet another pure comedy Disney short, featuring caricatures of Golden Age Hollywood celebrities in the roles of classic fairy tale characters. The opening logo is even a parody of the MGM Lion-except with a goose (albeit one that roars like a lion)!
Most of the gags in Goofy's "Teachers Are People" short, since it involves a kid turning in a handgun and grenade, threatening a classmate with a (water) pistol, and blowing up the school.
No Smoking becomes this due to Walt Disney's death from lung cancer, especially the gag where a skywriter spells out "Smoke Lookys" (Lucky Strike was Walt's preferred brand). Tellingly, one TV edit of the cartoon has a new ending where Goofy really does give up smoking.
The character, Mortimer Mouse (or a very similar version thereof) initially appeared in Mr. Slicker and the Egg Robbers, a very early storyline from the Mickey Mouse comic strip. The name is older still; it was almost the name given to the character that was instead named Mickey.
Max Goof first appeared in "Fathers are People" as Goofy Jr. Likewise, P.J. first appeared in "Bellboy Donald".
Popular with Furries: All of the Sensational Six. It also helps that several have spinoff universes which are also popular with furries (such as the Carl Bark Duck comics, the Goof Troop-verse, and the Ducktales cartoon).
Vanilla Protagonist: There's a startlingly low amount of shorts focused on Mickey in the '40s and '50s, even those categorized as his cartoon, his more laid back Every Man persona making him rather dull compared to more proactive co-stars such as Donald or Pluto.
Values Resonance: Motor Mania. This is due the fact there are still many drivers who tend let their emotions and ego override the wellbeing of the other people on the road.