!!YMMV items from the comics:

* CrazyAwesome: Calamity Jane is a [[TheLadette Ladette]] BoisterousBruiser SirSwearsALot who will shoot you if you don't show elementary gallantry toward women, constantly defies the DamselInDistress trope and generally rivals Luke in sheer badassery.
* EnsembleDarkhorse: The Daltons sometimes became even more popular than Luke. In fact, in the XilamAnimation produced series "Les Dalton", Lucky Luke doesn't even appear, and the focus is on the Daltons as they try to escape from prison.
** Rantaplan, to the point he got his own series;
** A minor exemple with Calamity Jane.
* MyRealDaddy: The majority of the fans refuse to acknowledge Laurent Gerra as Morris' successor.
** Technically, Laurent Gerra is the latest of the numerous Goscinny's successors, while Achdé is pretty faithful to Morris' drawing style.
* NightmareFuel: Bob Dalton's '''onscreen''' [[http://bdoubliees.com/journalspirou/sfigures3/luckyluke/horslaloi1.jpg death via headshot]]. The one panel in which he calls out for his mother as he dies hanging from the lantern showing only his feet suspended and ''[[BlackBlood something]]'' (it's probably the oil from the lamp but [[SymbolicBlood with the way it's portrayed like forming a pool underneath him the next panel]]) dripping below makes a chilling image. ''Yikes''... No wonder Dupuis asked Morris to change it.
* ReplacementScrappy: A rare inversion; the second set of Daltons have ended up becoming much more famous and iconic than the original.
* SeasonalRot: When Morris died and the series was written by comedian Laurent Gerra.
* VillainDecay: The Dalton Brothers have suffered quite a bit of it over the years. In ''Les Cousins Dalton'', their 1958 debute, they get the best of Lucky Luke, forcing him to service for a time. Within the story each brother is given different character traits. Joe is the mastermind, William is obsessed with guns and using everything on sight for target practice, Jack is a master of disguise. Averell is naive but also a superb boxer. In fact he fights Luke to a standstill. Luke only wins by using his cunning, not his fists. The two combatants agree to meet for a rematch and retreat to their own rooms for sleep. Only Luke manages to releases mosquitos in Averell's room. The following day, Luke is fresh after a good night's sleep, Averell has not managed to sleep at all. He can barely walk, much less fight. Since then, several stories portray them as incompetents.
* WeirdAlEffect: At least in Francophone Europe, the Dalton brothers from ''Lucky Luke'' are much more recognizable than the historical Dalton gang.

!!YMMV items from the movies:

* BigLippedAlligatorMoment: In Go West: A Lucky Luke Adventure, there is a woman who sings a musical number that has no relevance to the plot.
* CrowningMusicOfAwesome: The 2009 movie is scored by [[WesternAnimation/{{Coraline}} Bruno Coulais]]. This is inevitable.
** [[https://www.youtube.com/watch?v=RYzZPsK78Gg "I'm a Poor Lonesome Cow-boy"]] in its full glory which served as the ending theme for ''Daisy Town'' (and later truncated for the 80s animated series co-produced by Creator/HannaBarbera) has become a classic tune for the title character and its franchise.
!!YMMV items from the cartoons:
* EarWorm[=/=]CrowningMusicOfAwesome: the theme song for ''Les Nouvelles Aventures de Lucky Luke'' is [[https://www.youtube.com/watch?v=Z5jiulc5DRQ extremely catchy]]
* TearJerker: Despite the original source material and any other adaptations thereof is far from being a treasure trove of emotions (given that it's a comedy, spaghetti western parody and all), there's something surprisingly poignant about [[{{Tomboy}} Cynthia's]] plight in the "The Daltons Cowboys" that makes you sympathize with her a bit as the episode goes on. Sam laments that [[ChristmasCake being in her thirties]], [[OldMaid she's not getting any younger]] but he still hopes that she find a husband. Upon meeting the Daltons, she [[LoveAtFirstSight immediately develops a crush on Averell]] then later becoming an AbhorrentAdmirer who made Averell so miserable, he begged for her to let him go back to be with his brothers. After having thought of being deceived (thanks to Joe's plan when he was disguised as Averell and having tricked her into opening her father's safe), she seeks vengeance on Averell during her rampage but Lucky Luke stops her just in time, and tells her that [[LoveMakesYouCrazy love has made a crazed fiend out of her]] to which she responded with tears. Her father says that it's her first love and acknowledges that it's always the worst. He reassures Luke that she'll get over it. Then cut to the ending -- once Luke takes the Daltons back to prison, Cynthia steals one last glance. She gives way to a whimper (possibly repenting), then goes back to fixing the farm's roof, more upset than ever. It's one of the few, if not only, truly {{bittersweet ending}}s.
** Judging from the situation Averell was put through, he was a total {{woobie}} from start to finish with Cynthia's relentless crush and Joe forcing him to stay with her good side for the sake of revealing the location of her father's money in order for them to steal it. His smile as Luke sends them away back to jail is the "sweet" part on the aforementioned bittersweet conclusion of the episode.

!!YMMV items from the games:
* NightmareFuel: The GBC title ''"Lucky Luke Desperado Train"'' can get pretty creepy at times. Case in point:
** The BGM for the aforementioned "Explosive Mine".
** The SlasherSmile given by the guy in "[[RhythmGame Crazy]] [[UnexpectedGameplayChange Telegram!]]" if you screw up too many times (yup, someone working with a telegraph has a Slasher Smile - go figure).
** The ScareChord played when you die.
** A Continue option (available by collecting a silver coin with a hole in it) where you have to shoot faster than your own shadow: they managed to make the ''[[http://static.tvtropes.org/pmwiki/pub/images/050711_lucky_luke.jpg former image for the main article]]'' '''''creepy''''' thanks to DramaticWind and [[NothingIsScarier lack of music]].
** Most prominently, the GameOver screen, where you first see someone pointing a Gun at Lucky Luke's back (a Continue Screen available [[EasyModeMockery only in Sheriff mode]]) and then [[GoryDiscretionShot shifts]] to Barnaby the [[InexplicablyIdenticalIndividuals same-as-always]] undertaker as he holds his hands in cynical delight, with a poster reading Game Over (in typical "western" font). Can easily become High Octane for the most sensitive.
* CrowningMusicOfAwesome: one track in particular stands out, "[[http://www.youtube.com/watch?v=TEKIlV40WxI&feature=related Train]]" from the first GB/GBC Lucky Luke game. While the series itself shows pretty good music overall, this one is [[EarWorm bound to get stuck in your head for a while]].
* GoodBadBugs: A glitch exploited in an [[Website/YouTube out-of-sync-audio]] [[http://www.youtube.com/watch?v=e7szNFNsKkM&feature=related longplay]] allows a steamboat ''[[CrowningMomentOfFunny to ride the riverside]]''.