Your header takes up about 1/4 of the top of my screen. When I try to scroll down to see more content, I have this smaller window that's very annoying to navigate. Personally, I hate when I can't scroll past portions of websites. If I want to look at the header all day, I won't scroll down. But you are forcing us to look at the header the whole time we are on your site. I would get rid of that. Other than that, it's pretty decent. One other suggestion, blend the colors of your Google text ads a little better. They are off just enough to look bad, but not stick out in a good way. I would either blend them so they really look like part of your site, or if you want them to stick out, really make them stick out. Or, even better for an arcade site, use only graphical ads, no text. That will look much nicer.