The cut scenes are a bit long. You should be able to advance through the text but not skip it with a click or something. The controls are also a bit iffy. General gameplay is fine, but not extraordinarily fun. 3/5.
I think this game needs some more music. I think the default outdoor music is too happy when you're walking through a graveyard. With zombies in it. Lots of them. Oh, and they want to kill you, too.
There's some serious lag. It goes to the point of where I'm getting 2 shots per second with the gatling gun. It's not like I have a crappy computer either, this one is fairly new.
Game is quite difficult, but it's Street Fighter style in general. You'd have to be pretty good to even get past the first non-tutorial stage. Oh, and I think pause doesn't actually pause.