1.) The first appearance of the prototypical version of
Bugs Bunny. He is barely recognizable compared to his more familiar later form. Bugs' first official appearance would come two years later in
A Wild Hare.
2.) The "Do you have a hunting license?" gag was revived (but modified) in the 1953 short
Duck! Rabbit, Duck! where Bugs Bunny asks Elmer Fudd, "Do you have a fricasseeing rabbit license?"
3.) The prototype is seen chewing on a carrot, the only time he is.
4.) This cartoon also introduces the rabbit repeating a well-known Groucho Marx line for the first time that would become part of Bugs Bunny's lexicon. The exact wording, in this first appearance, is "'Course you know that this means war!" The proto-Bugs' rendering in this cartoon is a direct impression of Groucho, including dropping the trailing "r" of "war".