The name "Howard Heath" is a reference to the then-recently-deceased airplane magnate Howard Hughes.
Also known as "Curse of the Jumbo Juju."
The Japanese original language version and the English dub have Lupin breaking the fourth wall by requesting the title card to be shown.
The traps in the ancient temple, with the exception of the waterfall and the quicksand, are taken from Chapter 103 of the manga.