It's not horrible, but it's not great. I'm not really sure what I expected from a game called Zombie Ninjas Attack, but this wasn't it.
A few things I didn't like:
-There's nothing that tells you what direction stuff's in (like the bedroom).
-There are a lot of katanas for absolutely no reason.
-There are like no choices.
-There are no zombie ninjas, and the zombies don't really attack. You can't call a game Zombie Ninjas Attack and not have any zombie ninjas or attacking.
-The grammar wasn't good.