With my left hand firmly entrenched on w, a, s and d, and my right slowly but steadily choking my mouse to death, I'd venture that I seldom, if almost never, use the arrow-keys anymore. The only time I can recall using it recently, is when I write and have to go back to change a typo. And then I'll often just point…

"The game, which is popular with children, rewards players for slaying their opponents" - as opposed to the countless shooters out there, that penalizes you for raising a gun against alien aggressors?