A guy with an Arcadeshop in Germany has implemented a very nice "Guess the screenshot"-game.
www.arcadeshop.deHave a try and leave your name and favorite arcadeforum

I don't think that many users from USA will order their parts in Germany so I guess this is not to be understood as "commercial".
You have ten seconds to select the name you think the screenshot is from. After 3 wrong answers you loose and can start a new game.
You also can insert the link-code into your own homepage so your visitors can play it, too (adjust the colors to match your design):
<script src="
http://www.arcadeshop.de/screenshotgame.js" type="text/javascript"></script>
<script type="text/javascript" language="javascript"><!--
var sg_bgcolor='080808';
var sg_textcolor='FFFFFF';
var sg_linkcolor='FF7417';
var sg_linkhovercolor='F6F04A';
var sg_buttonbordercolor='FFFFFF';
var sg_h1color='CC3300';
var sg_h2color='FF7417';
var sg_scrollbarbasecolor='';
var sg_scrollbartrackcolor='';
var sg_lng='de';
--></script>
<a href="#" onClick="screenshotgame();">Arcade Screenshotquiz</a>
Have fun !!
