The Killing Joke author in 2008.
Finger thought the concept was incomplete, providing the image of Veidt with a ghastly, permanent.
All you need to do is to know how to save images as wallpapers, and there you go! In Arkham Asylum: A Serious House on Serious Earth, the Joker serves as Batman's trickster guide through the hero's own psyche, testing him in various ways before ultimately offering to cede his rule of the Asylum to Batman.