Peter comments " I always thought that the Japanese flew UFOs." During WWII pilots reported seeing many UFOs, in both the European and Pacific theaters, this is the origin of the term Foo Fighter.
When Stewie is trick or treating, he first visits Mayor Adam West's house where Mayor Adam West is giving out Cornish game hens instead of candy. One of the kids at his door is dressed up as Batman which may be a nod to Mayor Adam West's voice actor, Adam West, who played Batman on Batman: The Movie (1966) and Batman (1966).
The aircraft carrier that Quagmire dives on is numbered '37'. CV-37 was the USS Princeton, an Essex-class carrier that was commissioned in 1945 and saw service both in the Korean and Vietnam conflicts before being sold for scrap in 1971.
This is the first Family Guy (1999) Halloween special.
The music played when Quagmire, Peter and Joe takeoff in the Zero is a variant of the theme song from Top Gun (1986).