The jousting match is humorously modeled after a traditional gridiron football game, right down to the unique instrument that signals halftime and the unusual time piece used by the referee. Although professional football was still in its early stages, the college version was hugely popular at the time.
The title is a nod to the play and films "Night Must Fall."
Bugs calls Sir Pants A Lot a new Dick Tracy character, Accordion Head. This is a nod to the unusual array of folks appearing in the popular comic strip.
Sports and games spoofed include football (American), horseracing, and pool/billiards.
Bugs refers to Errol Flynn, the swashbuckling star who often appeared in costume dramas in early films.