It’s basically Left 4 Dead meets Smash TV, which is a combination made of extreme win.
That's quite an statement! Thankfully, the rest of the preview is just as positive...
For every zombie you kill, you’ll earn points. The points determines who the winner is of the four people playing, and gives the game a coin-op arcade feel. I was constantly thinking of Smash TV while playing Zombie Apocalypse, to the point that I now want to hunt down an arcade that has Smash TV. Good news: Zombie Apocalypse is four-players both local and online.
Click the "Source" link below for the full preview, and click here to see the new screenshot gallery.