If slaughtering zombies is your cup of tea, then the App Store is likely a favourite haunt. And Gamevil has just added an extra bag to the urn with Zombie Gunner.
The game is a side scrolling, cartoon shooter in a similar vein to Metal Slug, and casts you as Andrew, a civilian with a surprisingly impressive arsenal who's out to rescue his daughter from the stinking clutches of the undead horde.
Like most of Gamevil's output, Zombie Gunner is free-to-play, meaning you can pick up the app for nothing, but you'll have to pay for certain items or to boost your coffers of currency.
The game is available from the App Store right now, and it's probably worth a go just to see those gorgeous cartoon sprites in motion.