When Shame faces off against Batman and Robin in the final battle, in the first long shots the porch supports behind him are to either side of his head. In the closeups, one of the supports is directly behind him.
The scene with the little old lady buying a hot rod from Laughing Leo is a reference to the song "The Little Old Lady From Pasadena". The little old lady says "I came all the way from Pasadena to buy this car!", and was portrayed by Kathryn Minner, the same woman portraying the famous "little old lady" on the Jan and Dean album of the same name.
Werner Klemperer appears as Colonel Wilheim Klink in the window cameo. Not only did his series appear on another network but it was set during World War II. Yet Robin sends a word of hello to Colonel Hogan.
Robin: Just a few seconds left, Batman, and there's no way out!
Batman: Courage, Robin. Keep your mask up.
Robin: Holy Toreador!
Batman: The word is "matador," Robin. "Toreador" is merely a word of convenience used by Bizet in his classic opera, Carmen.
Robin: Holy Matador, then.
Batman: Very apt.
Batman: There's a tiny green speck and an even tinier red speck on it, Robin. Here, take a look at this.
Robin: What do you think it is, Batman?
Batman: The red speck appears to be chili and the green speck appears to be avocado. Do you know that means?
Robin: That Shame is a sloppy eater?
Messy Jones: But boss, how did you know?
Shame: I knew he'd think I'd think he'd think I'd think he'd come back here.
Laughing Leo: You wouldn't hit a man with glasses, would you?
Batman: You're not wearing glasses.
Laughing Leo: Oh, I'm not?
Batman: (Batman punches Laughing Leo) Laugh that off, Leo!
Robin: What's wrong, Batman?
Batman: They've already attained a substantial lead over us, Robin. Plus with the speed of that truck, we'll never catch them now. And they have one great advantage over us.
Robin: Which is?
Batman: They know where they're going.
Robin: But he knows that we know about his hideout there!
Batman: Correct! However, knowing that, he'd think that we'd think he would not return there, therefore he did and so will we!