* Batman finally has enough of the Joker's ranting and bursts through one of the funhouse mirrors during the climax in an absolutely gorgeous full-page splash image, complete with an OhCrap from the Joker. After seeing everything the Joker has done across the story, it's incredibly satisfying to see this and the beatdown that comes next.
* When it's revealed that [[spoiler:Commissioner Gordon withstood the Joker's MindRape]].
* Batman's subsequent beatdown and TheReasonYouSuckSpeech to Joker.
-->'''Joker''': [[VillainousBreakdown Why aren't you laughing?]]
-->'''Batman''': [[PreAssKickingOneLiner Because I've heard it before. And it wasn't funny the first time.]]
* AwesomeArt - four different pieces of art from this work have become iconic for The Joker - #1. The cover image of The Joker aiming a camera at the reader, #2. The shot of Joker behind the door Barbara opens just before he shoots her, #3. Batman and The Joker laughing together in the rain (the middle panel), and especially #4. TheReveal of the Joker after coming out of the chemical bath, with the background filled with his laughter. Most artists consider themselves lucky if just one panel out of their entire body of work becomes fairly well-known, much less iconic - Brian Bolland got four ''in a single book''.