Ever since it debuted, IGN's been a bit baffled by Gotham City Impostors. It's a downloadable first-person shooter set in the Batman universe, but it doesn't feature the Dark Knight (who, of course, is a hero who doesn't believe in guns). I've spent a few days with Gotham City Impostors, and while I enjoy the game, I don't know why it exists. Who was asking for this mash-up? It's like when they put out Batman action figures with neon skis, but I digress...