"The Skateboard Murder Mystery"
The owner of the legendary sapphire, the Eye of Solomon, is Ellary Queen, who also owns the Red Eagles football team. Lupin, coming for the sapphire as he declared he would, retreats for the time being when he finds Queen near death. Someone has already attacked Queen, attempting to frame him. According to the deduction of Bolonco, son of Detective Lt. Columbo, the sapphire has not yet been stolen. Who really dunit?!
- Clear My Name: Halfway through Lupin's accused of the attempted murder of Ellary Queen and forced to demonstrate his innocence.
- Crazy-Prepared: Knowing that Lupin could find the gemstone in the dark, Boronco swapped it for a fake sapphire. Lupin outsmarts him by predicting this outcome and grabbing the sapphire on the table.
- Diagonal Cut: How Goemon gets Lupin and Jigen out of custody. Jigen even notices when his cigarette is suddenly cut in half from nowhere.
- Gratuitous English: While trying to hit on some policewomen, Zenigata tries to say, in English (with Japanese subtitles) that he caught Lupin a hundred times: the first time he ends up saying that he caught a hundred Lupins, the second time the policewomen point out that this mean that Lupin also got away a hundred times and burst into laughter, with Zenigata taking it in stride.
- Hilarious in Hindsight: Many years later Lupin challenged another (and more famous) kid (more or less) detective. And Boronco made a cameo in the Lupin III vs. Detective Conan: The Movie.
- Kid Detective: Boronco who was the son of the famous Columbo. The entire police force is willing to follow his plans and, according to him, even his father asks him for help from time to time.
- Reverse Whodunnit: Played with; while the perpetrator of the attempted assassination is covered in shadow, the silhouette shows that it's clearly George.
- Slapstick Knows No Gender: When the fake ball explodes, we get to see Fujiko cartoonishly devastated from the blast, including Ash Face and afro hair.