Watched a few seconds of it...reminded me of my nephew. Kid is 15 years old...and REALLY hates zombies.
I was playing it while he was watching and you could just tell that he wasn't going to sleep at night. He was like, "You know, Uncle Brian, I really...really...don't like zombies."
So you know...I was a good uncle. I finished beating the crap out of the zombie with the hammer and then said, "Alright man! FAT PRINCESS TIME!"