Meh
I can understand how this can be addicting, and that it is kinda fun, but its too repetitive. I love the whole idea, but after five solid minutes of point and click, it became apparent that it wouldnt' get much harder. I suggest adding in different features/modes. Different kinds of zombies that take more hits to kill and a feature so that instead of having an automatic crosshair, make the gun so you have to adjust the angle to find the right spot to hit. Good overall, but a bit boring. Also, can you do more things with the people inside? After barricading once and using the elevator trick(which is pretty cool) the people inside are just standing there. Maybe instead of having the zombies automatically win when they get inside, let the stick guys do stuff. Get Home-Alone on those zombie's asses!