Popular game genre gets fun twist with social features.
Bloody combat game targets your wallet.
Violence is nonstop but cartoony in zombie shoot-'em-up.
Take out demons in bloody hack-and-slash action game.
Shooter not as graphic as console games, has poor controls.
Dark humor, heavy weaponry make this shooter for teens+.
Teen kills zombies with soccer ball in darkly funny app.
Cute cartoon characters belie bloody mayhem to come.