It's a Joker World, Baby, We Just Live In It!
- Batman’s horrific ordeal is one in-universe and for readers; the Joker not only breaks Batman down to the point where the Dark Knight is suggesting murder, but in the end Batman is left so psychologically devastated by what he's been through that the only solution is to steal his memories of the experience.
- You know things are bad when even the most powerful and omniscient beings in the universe cannot escape the Joker, falling victim to him just as easily as anyone else; it's enough to make even Darkseid conclude that the situation is hopeless, surrendering to the Joker's madness without a fight. It's even shown that the Spectre itself is trapped under the Joker's influence.
- What the Joker does to the Earth. He turns it into a large cubic planet with all the landmasses on each side shaped like his own face.
- The power to warp reality and control the universe in the hands of a madman with no moral compass.
- The Joker eats the one billion population of China, all because he wanted some Chinese food.
- Emperor Joker plans to destroy all reality because he thinks any universe that would let someone as depraved as him come into existence is better off gone. Even in the rare moment he's remotely sympathetic, this is what he's like.
