What is the role of the Joker in Arkham Asylum? Is he truly a villain? Why does he want Batman to come to the asylum?

Is Batman truly a hero? What is Batman's heroic task in Arkham Asylum?

What are Ruth Adams' motives for killing Cavendish at the end of the novel?

Why is Two-Face able to step out of his reliance on chance and make a decision to let Batman leave Arkham Asylum at the end of the novel?

Why does Batman go back into Arkham Asylum to tear it down when he could escape through the passage with Ruth?

Why does Amadeus Arkham kill his mother?

What parallels are there between Amadeus Arkham and Batman?