Lupin's emergency ass-chute. Yes, you read that right. When Goering's helicopter shreds Lupin's kite, he quickly strips out of his pants and his boxers. The chute actually appears to come from Lupin's buttcheeks! What could they possibly be referencing there?
Lupin and Co. run across a tour group, while they're in Amsterdam. There's a kid with them, who's about 12-13 years old, who's only interest seems to be the tour guide, rather than the tour. When she notices him, and asks if he's enjoying himself, he responds by yanking her skirt up; revealing some kinky lingerie, underneath!
tour guide: (chipper) "You enjoying yourself, kiddo?"
*kid pulls her skirt up, shocking her*
kid: (deadpan) "Yeah."
Awhile later, we see the same tour group, during the boat jump sequence. As Lupin and Jigen clear the ferry, the action goes into slow motion, which gives us a close up of the same kid and their tour guide. If you pause, at just the right moment, you can see he has his hands just under her skirt and on her butt!
Fujiko's reaction to Goering's men choosing Diana, over her, when he tells them to take the "pretty one". She stares incredulously for a moment, before she objects.
Fujiko: (offended) "I'M the "pretty one!"
The scene where Zenigata interrogates Lupin and Diana, specifically about her involvement with Lupin.
*Diana knees him in the stomach, and swipes the bear statue. Then smiles at him as she leaps from the train*
*Lupin smiles back at her, admirably*
Lupin and Diana get another scene, once they make it inside the temple ruins and reach the "Room of Pleasure". They run past a topless statue, which causes Lupin to backpeddal to enjoy the eye candy. Diana doubles back and quickly pushes him into the next room.
*Diana runs back onscreen*
Diana: (chiding) "Will you stop?"
Lupin: (pouting) "Baby hungry."
Jigen spitting out a fish after climbing out of the water? Funny. Lupin making fun of him for it then suddenly coughing up an octopus? Hilarious.