Must Deliver, by cherrypick games, is a top-downendless-runner witha healthy dose of the living dead.
Zombies have overrun the city and you must race to deliever the cure to thehelpless survivors. The game has a fun retro look and gives you a bunch of quirky heroes to unlock as you play. You'll have to run though different environments and weather conditions, which could really make your life hard as you try to dodge zombies and grab power-ups.
Pick up your own copy of Must Deliver for free on the App Store.