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.
Ass Pull: Making up a native-sounding title for Dundee and claiming it means "The crocodile who walks like a man"
Note this is not the fault of the writers, but rather Wally trying to play up Mick as a bigger badass than he already is, and get the villains nervous.
Awesome Music: The music when Mick first arrives in New York City.
Dude, Not Funny!: In Crocodile Dundee II, our hero sees a despondent man on a high building ledge about to jump. He's heartbroken, and Dundee consoles him about his lost love - until he says "And then he left me!" At which point a disgusted Dundee sharply pulls back and leaves him to jump...
To be accurate, Mick does pull back, looks at the jumper in surprise, loses his balance and himself almost falls down. The "leaves him to jump" bit simply doesn't happen, though: the jumper-to-be is the one to declare "screw that" and leave, while Mick is busy holding the ledge for dear life.
Sequelitis: The first movie was a surprise hit and grossed over $175 million in American theaters in 1986 (back when movie ticket prices were barely half of what they are now). While some people think that it hasn't aged well, most everyone agrees that it is superior to the 1988 sequel Crocodile Dundee II, which did only about half the business of its predecessor. Most people don't even know that there's a 3rd movie in the series. From a story perspective, the first film was about a big fish in a small pond being dumped into the ocean. The second was about said fish fighting columbian druglords. The third movie.... was not very popular, to put it mildly, even though it's all about Mick acting like "Crocodile" Dundee.
They Wasted a Perfectly Good Plot: The poaching accusations Mick faces and anything resembling intricacy of character are summarily done away with as soon as he arrives in NYC. What makes it particularly jarring is that it pretty much rendered an entire act moot.
Values Dissonance: Sue treats a man doing lines of cocaine in the kitchen of a fancy party as nothing more interesting than if he was doing shots of tequila. Welcome to The Eighties.
Mick's treatment of the crossdresser/possible transwoman in the first movie. Grabbing someone's privates to find out what parts they have counts as sexual assault nowadays. It doesn't help that another bar patron refers to them with a gay slur.