Great idea, very original.
I like the graphics, perhaps you could add some more assets than only same house all the time or same vehicles ?
I like the camera shake effect, and when you have to move the mouse to throw some ennemie that is near you !
I agree with you Ratchet, its pretty easy to add lots of background objects in, but to keep our game at a reasonable file size we have to make some cuts, the file size restrictions are dependant on the audience and in our experience the Shockwave audience have a limit to how long they like to wait for a game to download. Its always difficult to make cuts, but you have to prioritise, especially in a 2 man team.
however I’m sure if it was an issue a few extra car models could be squeezed in with no real impact and some more variation could be added to the 5 house models we have in there now.