There's a fine line between a superpower and a chronic medical condition.

When your laboratory explodes, lacing your body with a supercharged elixir, what do you do? You don't just lie there. You crawl out of the rubble, hideously scarred, and swear vengeance on the world. You keep going. You keep trying to take over the world.

With 'Invincible', I wanted to create my own version of the Marvel or DC universe, with my own heroes and villains.

My ultimate game - or at least one I would really like to see - would be something where it was like the beginning of George R. R. Martin's 'Game of Thrones', where you're Ned Stark, and you know that one of your friends has been murdered, and you go to the capital city and you have to navigate this web of court intrigue.

The video game story-development process is incredibly broken.

Nixon is fascinating because he's our most alienated president. Everybody felt that they never knew who he was - that's palpable in the histories. His face is so cartoony that he's become this cartoon figure. I never really related to the romanticization of J.F.K., and I knew too much about Reagan to idealize him. Nixon falls in between.

I'm really curious about the memory of Nixon for people who grew up under Clinton. What do people remember of him? In his day, the definition of a conservative right-wing president is more like a centrist in our own time. He's also one of our funnier presidents - just a really good character to write about.