Lucky Luke/YMMV

YMMV items from the comics:

 * My Real Daddy: 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.
 * Seasonal Rot: When Morris died and the series was written by comedian Laurent Gerra.
 * Villain Decay: 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 obsessed with guns and using everything on sight for target practice, Jack is a master of disguise. Averell was 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.

YMMV items from the movies:

 * Big Lipped Alligator Moment: In Go West: A Lucky Luke Adventure, there is a woman who sings a musical number that has no relevance to the plot.
 * Crowning Music of Awesome: The 2009 movie is scored by Bruno Coulais. This is inevitable.

YMMV items from the games:

 * Nightmare Fuel: The GBC title "Lucky Luke Desperado Train" can get pretty creepy at times. Case in point:
 * The BGM for the aforementioned "Explosive Mine".
 * The Slasher Smile given by the guy in "Crazy Telegram!" if you screw up too many times (yup, someone working with a telegraph has a Slasher Smile - go figure).
 * The Scare Chord 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 image for this page creepy thanks to Dramatic Wind and lack of music.
 * Most prominently, the Game Over screen, where you first see someone pointing a Gun at Lucky Luke's back (a Continue Screen available only in Sheriff mode) and then shifts to Barnaby the 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.
 * Crowning Music of Awesome: one track in particular stands out, "Train" from the first GB/GBC Lucky Luke game. While the series itself shows pretty good music overall, this one is bound to get stuck in your head for a while.
 * Good Bad Bugs: A glitch exploited in an out-of-sync-audio longplay allows a steamboat to ride the riverside.