Mortal Kombat co-creator Ed Boon confesses, "I don't think we ever thought we'd be able to tear Batman's head off." He's a nice man - firm handshake, nice smile, surprisingly tall - but for the last 16 years, he's been orchestrating some of the most brutal killings in gaming. Spines have been ripped out, arms have been torn off, characters have been inflated, eaten, dissolved, burned, stabbed, eviscerated, flayed, shot, electrocuted and - in one game - crushed by arcade cabinets. Ask anyone who was a teenager in the '90s what Mortal Kombat means to them and they'll probably say "Finish Him!" or "Fatality!" in that growl. And now, it seems, it's all over. You can't kill Batman. Nobody kills Batman. So what was Boon and co thinking?