I would modify your adsense colorscheme.. it doesn't blend in too well with the site. Try changing it to a black background with yellow text instead.
I would change the placement of the ads, when I go onto the site all i can see is ads =/ ... then I have to scroll down for the games, when many people see tons of ads straight away they just leave your site
The site is alright, I just find it really disorganized and blatant. If I were you, I'd change the yellow and black color scheme and just clean the whole website up. I got the impression that there were too many ads everywhere, but that's probably because the navigation looked exactly like the ads (which isn't always a bad thing, but it kind of made me want to leave). Remove some ads, change the placement of your ads, or rework their color scheme to make them the most effective. Good luck.