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* AccidentalInnuendo: "I love it when I'm nasty!"
* AdaptationDisplacement: There are actual books, plural, about Basil of Baker Street.
* AwesomeEgo: Basil. Also Ratigan.
* AwesomeMusic: Music/HenryMancini, people. Why this film didn't get a soundtrack release at the time is a mystery (and when it did, it wasn't via Disney - step forward Creator/VareseSarabande with the re-release in 1992).
** Also, VincentPrice has a VillainSong.
* BestKnownForTheFanservice: Show this to people or bring it up and the only thing they'll remember is Miss Kitty's song and dance in [[http://static.tvtropes.org/pmwiki/pub/images/Mouse_7221.png her showgirl outfit]].
* BigLippedAlligatorMoment: Allow us to take a break to honor our UsefulNotes/FurryFandom with a burlesque show.
* CanonFodder: Perhaps due to its status as one of the few Disney movies not to be given an unneeded sequel, it has a bustling fan fiction community, some stories of which are mouse-ified re-tellings of Sherlock Holmes stories.
* CrazyAwesome: Basil. His introduction involves him racing in to his apartment in a huge Chinese costume, shooting his pillows, giving a BigNo when the bullets don't match up, and then playing his violin dramatically. And then there's how he escapes the trap in the climax.
** Rattigan, despite being the villain, and a ruthless one at that, is pretty awesome, both in his over-the-top personality and the lengths he'll go to just so he can rub his success in his enemies' face. Of corse, that's what you get when you combine the animation of GlenKeane with VincentPrice's voice.
* CultClassic: One of Disney's most underrated films, along with ''Disney/TheBlackCauldron'', only this movie made it's money back and convinced the studio to continue making animated films.
* DracoInLeatherPants: Fidget of all people. While he has some comical and likeable qualities, the manner in which he kidnaps Mr. Flavershim and Olivia is pretty violent and scary at one point he suggests throwing Olivia off the baloon to lighten the load. Seems so loveable, doesn't he?
* EnsembleDarkhorse: Fidget (so much so that a comic story in the last issue of ''DisneyAdventures'' inexplicably brought him BackFromTheDead and turned him into a sidekick to Olivia). No few animation, film, and comic magazines during the time of the film's original release and re-release had reviews and articles questioning why "the big dog" was pushed so heavily in the advertising when it was the bat that who most audiences came away remembering.
** Also, [[MsFanservice Miss]] [[UsefulNotes/FurryFandom Kitty.]]
** Ratigan, for Disney Villains. He isn't featured in the merchandise as much as other Disney villains, but he still has tons of fans.
* FoeYay: Basil keeps a portrait of Ratigan, his ArchEnemy, whom he [[ImplacableMan obsessively pursues]], in his room for one thing...and Ratigan has a voodoo doll of Basil on his shelf. Sure, it has pins in it, but who do you think made the doll, hmmm? Disney ''did'' release [[http://i37.tinypic.com/2wlxdf9.jpg this]], after all...
** Ratigan's "Goodbye So Soon" song ''reeks'' of this, as well as the almost fliratious way he says "Bye bye, Basil" as he leaves Basil and Dawson to die in his DeathTrap while the song is playing.
** Ratigan also playfully pinches Flaversham's cheek and almost kisses him.
* GermansLoveDavidHasselhoff: Comics about Basil are very popular in the Netherlands. But Dutch Disney comics tend to feature relatively obscure Disney characters anyway - a good 50% of the weekly comics are about Bre'r Rabbit, Madame Mim, Hiawatha, Panchito, or Horace Horseshoe.
* {{Glurge}}: It can be ''very'' hard to watch Olivia and Flavisham's reunion owing to how cringe-worthily tooth-rotting it is. Especially since they're carrying on like that in front of the BigBad.
-->'''Ratigan:''' "How sweet..... I just love tearful reunions."
* HilariousInHindsight: This was not Disney's last [[WesternAnimation/DarkwingDuck project]] that involved a FunnyAnimal version of a [[{{Franchise/Batman}} famous great detective character]] accompanied by a spunky little girl...(directly invoked by the ''Darkwing Duck'' cartoon show, DW owns a statue of Basil.)
** Ratigan, 1897, cape caught between clock gears. [[WesternAnimation/TheIncredibles NO CAPES!]]
** Also, Ratigan is Professor Moriarty as a SissyVillain ''long'' before [[Series/{{Sherlock}} the actual Moriarty got in on it.]] And you should see him in a crown.
** Additionally, Basil wore [[http://3.bp.blogspot.com/-NaWYfItg6Rk/UVOVc6KXGPI/AAAAAAAALM0/-ldXmtyfqQ8/s320/12.jpg a large dark coat]] as a [[http://cdnvideo.dolimg.com/cdn_assets/003567d913f4db5f7ff36c51a6f766d1c274b577.jpg disguise]] long before [[Series/{{Sherlock}} the actual Sherlock did the same on a regular basis]].
* HoYay: No such thing as a Holmes adaptation without it.
* LoveToHate: Ratigan, mainly due to Vincent Price's love of hamming it up.
* MagnificentBastard: "The nefarious Professor Ratigan! He's a genius! Twisted for evil! The Napoleon of Crime! There's no evil scheme he wouldn't concoct! No depravity he wouldn't commit! Who knows what he is up to even as we speak?" And if Tv Tropes type any more exclamation marks, the server will explode!
* {{Moe}}: Olivia
* MomentOfAwesome: The escape from Ratigan's trap, capped by their posing for the camera ("Smile, everyone!").
* {{Mondegreen}}: The lyric "I'll take off all my blues" in the song "Let Me Be Good To You" has reported to have occasionally been misheard as "I'll take off all my clothes". (Granted, who could blame those who misheard the line? All the clothes Miss Kitty is wearing are BLUE.)
** It doesn't help that she says the line in question while whipping her skirt off to reveal a one-piece dancer's outfit.
* NightmareFuel: Ratigan, once his true rat personality comes out.
* OlderThanTheyThink: This is widely credited with the first extensive used of computer animation in a Disney feature film, when in fact it had been used for several special effects and a boat in ''TheBlackCauldron''. Of corse, Disney [[OldShame doesn't like to talk about that one]].
* OneSceneWonder: Remember Miss Kitty? Yeah.
* PerverseSexualLust: ''Basil''. He's probably part of why there are furries.
* {{Signature Scene}}s: [[BestKnownForTheFanservice Miss Kitty's musical number]] and the confrontation inside the ClockTower.
* TheyChangedItNowItSucks: When this film's title was changed from ''Basil of Baker Street'' to ''The Great Mouse Detective'', the name change earned [[http://www.lettersofnote.com/2011/09/seven-little-men-help-girl.html a good deal of scorn]], even from inside the studio, suggesting titles for their other films such as ''[[Disney/SnowWhiteAndTheSevenDwarfs Seven Little Men Help a Girl]]''. The result was animator Ed Gombert wrote a memo with these alternate names that circulated through Disney Animation and eventually reached then-studio chief Jeffrey Katzenberg, setting off a chain of events that left the memo to be immortalized in a January 1987 episode of ''Series/{{Jeopardy}}'' and earned animation a tongue-lashing from Katzenberg's newly installed right hand Peter Schneider, whose name Gombert used when he wrote the memo. Changing ''Rapunzel'' to ''Disney/{{Tangled}}'' and ''Literature/TheSnowQueen'' to ''Disney/{{Frozen}}'' would receive similar reactions years later, minus the shenanigans from the animators.
* UglyCute: [[http://images.wikia.com/disney/images/6/61/Mousedetective836.jpg Fidget]], when he's not [[NightmareFuel bursting into the scene]] with a ScareChord.
* UncannyValley: The Queen's [[spoiler: robotic double.]]
* VindicatedByHistory: Overshadowed in the 80's by Don Bluth's ''WesternAnimation/AnAmericanTail'', and for awhile was overlooked or lumped together with the other films of the Dark Age. Now it's fondly remembered as ones of the films which reinvigorated Disney Animation.
* VisualEffectsOfAwesome: [[ConspicuousCGI The inside of Big Ben]] still holds up even today.
* TheWoobie: Its hard not to want to give Olivia a huge hug.
** JerkassWoobie: Fidget. He's a criminal who definitely WouldHurtAChild but he's also a cripple who gets yelled at by Ratigan, is nearly eaten alive for leaving a clue behind, and [[spoiler: gets tossed out of a blimp and falls into the Thames. Because of his busted wing, Fidget can't even fly to save himself. His last words are a cry of anguish: "No, not me! I can't fly... I can't flyyy..."]]
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