Zombies are cool, and soccer is cool (in the right context). In fact, kicking a super-powered soccer ball at zombies is probably one of the cooler concepts I've heard lately. Undead Soccer from Bulkypix is a casual title that's a little bit first-person shooter, and a little bit sports game. It's also a little bit greedy, but we'll get to that.
Undead Soccer basically involves flicking soccer balls at the approaching hoard of zombies in order to survive.