* The Joker is a goldmine of these during his limited time in the series. There's his first appearance in the Christmas issue - stealing a family's Christmas presents, while quoting the Grinch, no less.
* A minor one, but Catwoman - when grabbed by an Ivy-controlled Bruce Wayne - actually lets out a, "Mrow!" of surprise.
* Calendar Man and Holiday's holiday-themed tête–à–tête near the end.
* Batman and Harvey Dent themselves in the warehouse full to the roof of money that Falcone couldn't launder:
-->'''Harvey:''' "Oh boy. You know... If we were ''two other'' guys in a room full of ''untraceable'' cash-"
-->'''Batman:''' "We're ''not''."
-->'''Harvey:''' "Yeah. But I was just thinking how easy-"
* Maroni's OhCrap face when, on Christmas, he gets visited by Batman ''after'' Joker killed one of his men and was about to kill him for Holiday's kills.