I did, however, play the Xbox single player mode for 2.5 hours. Pretty disappointing. Long, same-y levels with few distinctive landmarks or set pieces. Felt very similar to a lesser Halo level.
I finished the XBOX version. Once you get all your powers you're like, cool. But it does get old fast and when it's over you're like...damn, that was short. I wasn't complaining either. Thank god it ended. But it was very funny and had great music. Worth a play or if you get it cheap. Funny and Zombies is a good thing.