This is a game that will be great. but you still have to fix a few things like how to lose and some stuff like that. (yes i know it isn't done yet) but i found a bug, some times then the eyes are touching you you some times i flew up in the sky. but other than that i couldn't find any problem. keep up the good work. i can't wait for it to be done^^ (sorry for my bad english, i'm from sweden)

Nice graphics. I found some ball and it was scary

Nothing happened when I press start.

How do i win? There is a place i have to go? Why im there? What are those balls? Who am i? Where did i get that gun? If I can not win what is my motivation to keep playing?... you don't need to answer them all but i think that a bit of deep wouldn't do any bad
Also i think you should move the shoot key from space to left click. You made all those assets?

And i think thats all i have to say =P
Good job, keep it up

Add a crosshair, add more different enemies, add GUI, create some story, add option to shoot with left mouse button. Well, create a completed game.