These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Napoleon Dynamite
Film
Awesome Music - "Canned Heat" by Jamiroquai (used for THAT DANCE SCENE) and "We're Going To Be Friends" by The White Stripes.
"The Promise" by When In Rome.
Coincidentally, Jon Heder and Efren Ramirez appeared in a movie with the same name as that group.
"Music For a Found Harmonium" used at the end when everything is being tied up. More like Crowning Music of Heartwarming, but still.
This list can't be complete without "Forever Young" by Alphaville, which is played at the school dance.
Funny Moments: Oh, so many. The crotch zapping time machine, Napoleon's dance near the end, Kipp's attempt to demonstrate the strength of a Tupperware bowl using Rico's van, the list goes on.
Fountain of Memes: Everything Napoleon says. "Gosh!" "Frickin' idiot!" "I like your sleeves." "Fine!"
Watch It for the Meme: Or at least, the lines all your friends have been repeating ad nauseum.
Animated Series
Jerkass Woobie: Uncle Rico. In the Animated Adaptation he is despised by pretty much by everyone. At the end of one episode is revealed that he is a very sad and lonely guy.
So Bad, It's Good: In a manner similar to the movie it was based on.