Hehe. Im dizzy after that one. The menu looks cool. It has the polish of Max Payne for the PC (Which I think is good). Quite obviously you have to working on the controls (can't aim).
One of your zombies got stuck in a wall. haha. It also lagged quite a bit when pressing the spacebar in succession (perhaps the difference between an onkeyup and onkeydown function?)
However! I think it is good for you doing it alone. You should look into modular design. Also, you can make a far better looking area quicker using Google Sketchup. Something like this: