Somehow makes doing homework and catching the train home feel like the coolest thing you've ever done.
Fun fact: Started as a spin-off of Shin Megami Tensei, a franchise it now outsells by a wide margin.
Heath Ledger turned up, did that, and now every comic book villain is just trying to keep up.
Fun fact: "Heath Ledger locked himself in a hotel room for six weeks to develop the Joker's voice and mannerisms."