Both Bugs and Elmer are in transitional stages of appearance development here, with Elmer wearing the outfit seen on his earlier version, Egghead. Bugs is shorter and had more salmon pink inner ears. Both would evolve further through the next decades.
The red, yellow and blue spots Bugs paints on the wall resemble the ones on a Wonder bread wrapper.
The hare, although similar in appearance to the rabbit, is a different species of the genus Lepus. They are also cousins to the desert hoppers, jackrabbits, and belong to the family Leporidae, along with actual rabbits.
Another episode where Bugs breaks the fourth wall to address the audience.
The label on the medicine bottle shown during the opening credits features an accurate rendition of what a real life Bugs Bunny might look like.