In ZombieKiller Ultimate you've been pitted against wave after endless wave of zombies as the world's chosen premier zombie killer and if you can rack up enough kills you'll have the chance to improve your skills and become the ultimate zombie killer. As the first release for TeamBlackCat on the App Store, this title is certainly not for younger audiences and despite the indicated rating you'll have to judge for yourself as to whether it's appropriate for your tastes.

With that said, ZombieKiller Ultimate doesn't pull too many punches and quickly puts players in to an isolated and desperate mindset when fighting off the horde. In each location you'll face off against quickly advancing zombies of various strengths and weaknesses, with the occasional creature popping up right next to you to make things more challenging. Touching the screen will allow you to aim your weapon and a space in the corner is provided to prevent too much visual overlap, while tapping other screen elements will swap weapons, fire your gun or allow you to manually reload as required.

ZombieKiller's style is extremely dark and uses stark black, white and blood-red designs for its 2D world. The zombies themselves are truly disturbing with a 30 Days of Night style of twisted dark features to drive the horror theme home. The gameplay can get repetitive and at times will use cheesy methods to spook or otherwise distract you, but the challenge remains balanced delicately on a knife-edge until the end.

Easy to recommend to action fans after a genuine horror experience.