So you think you've got a tough boss, do you? Does he try to shoot you, disembowel you with a sword that's longer than he is tall, or bean you with pink bats? Has he ever literally chewed your ear off? Is he a ten-foot disembodied floating brain? No? Then you ain't seen nothing yet. Check out ten of the toughest and most creative bosses in video game history and count your blessings.