This episode retains the first appearance of a Batvehicle other than the omnipresent Batmobile. (edit) The Emergency Remote-Control Ejector Button, first used in this episode, is activated again in The Bookworm Turns. (edit) This marks the debut appearance of The Batcycle, as an early prototype, constructed from a 1959 Harley Davidson with side car, rented from a Hollywood firm in the business of supplying vehicles for movie and TV productions. A more flashier Batcycle will be seen in the 1966 Batman feature film and used throughout the rest of the TV series' run. (edit)

Chief O'Hara: Have you no conscience?
Gordon: Great Scot, Penguin. This woman loves you. She's still willing to marry you!
Penguin: Who me? The Penguin. Married and kept in a bathtub?
Sofia Star: I do love you, Pengy. I'd try so hard to reform you.
Penguin: Great quivering icebergs! Take me to prison! (waddles out) (edit) Chief O'Hara: On the ammunition used in the shootout with Batman and Robin. 297 rounds of ammunition, including Tommy guns and pistols. It's strange, isn't it Commissioner?
Gordon: Isn't what strange, Chief O'Hara?
Chief: 297 rounds of blanks. They cost more than the real thing. (edit) (After Batman and Robin have been gunned down)
Chief O'Hara: Don't feel too badly about it, men. You did what you had to do. It's always tragic to see a crime fighter turn bad. (edit) Eagle-Eye: Do you see what I see, Dove?
Dove: What do you see, Eagle-Eye?
Eagle-Eye: I see ghosts on a Batcycle!
Robin: Ghosts, huh? I don't think you crooks have the right spirits.
(edit) Penguin: Back from the grave, you tricksters, eh?
Robin: Back to send you on a honeymoon cruise, Penguin. Up the river to the pen!
Batman: Gone straight, huh?
Robin: We'll straighten you out! (edit)

Goof: Batman says he has a camera in the Batmobile which might suggest an interior mounted camera, but the footage he watches is filmed from the exterior of the vehicle and beyond the vehicle. (edit)

The Penguin: Oh, fabjous day! Callooh! Callay!

The Penguin quotes "Jabberwocky" from Alice In Wonderland after The Gotham City Police appear to have slain The Dynamic Duo. (edit)